Model Maker: Volume 3, Issue 30 – May 1953

  • Fitting Out. A Model Maker Review of sources of supply for the boat builder
  • Designing to the ‘A’ Class Rule, Part V. By B.H. Priest
  • Harlequin . A 36-in Restricted Class Yacht by Bernhard Reeve. This long installment covers painting and finishing the hull, making spars and mast, and the various deck fittings.
  • Model Yacht Club Notes. By “Commodore”
VOLUME 3 NUMBER 30 IN _ THIS ISSUE : Coronation Coach Fitting Motor : “Number MAY Article for Boats : A Lowestoft Drifter-Trawler Bedford Venturer Coach _ Out and : In : Sensitive Drilling Machine 12” Moore Record Car Yachts : Horses and Figures for the Quest of Extra R.P.M. for Model Cars : : A Vice with Virtues : Signalling a Single : A Simple Point Line Junction : “Harlequin” -” 36in. Class Yacht : Models of the Village Green : “Gerry” O Gauge Steam Loco : Photographing f- Models : New Boat Kit Reviewed : Prototype Parade — “Disco Volante” Alfa Romeo 1953 LEEee rasa and brought to a smooth finish. The bulwark side when hauling. the trawl gallows. plate was first cut from cardboard: after a satisfactory fit had been obtained this was used Painting of the hull, below waterline, should as a template for the 1/16 in. plywood which was actually used. Where the plates meet at be a dark reddish brown: above waterline is usually owner’s choice, black. or grey being most favoured. Inside bulwarks are generally the bows, a small fillet of plastic wood was used to give a strong joint. was cut to shape from These are directly below The bulwark capping brown. The name should be painted on both sides of the bow, and on the stern the name must 1/16 in. plywood, fitted on, and fastened with glue and panel pins. be painted with the port of registration under- Fishing craft have a number of half-round rubbing bars fixed to their hulls, only some of which encircle the hull fully. They are placed in position to take any chafing of the fishing neath in white letters on a black background. This lettering on full-size craft must be 3in. high and }in. thick. There is no official size for the name on the bows, but the fishing letters gear used, such as steel warps and trawl doors. and numbers must be in white on a black back- They also help to prevent fishing gear and other vessels catching or damaging their hull plates while in port. There are two genera lly encircling the hull, one at the top edge of the bulwark plate and the second at deck level. There is another stretching about three-quarte rs of the length of the vessel, about 3 ft. below deck level, and there are a number in short ground, painted on both bows and quarters, 18 in. high and 24 in. thick, so that if the hull is painted any other colour than black above the waterline the name and registered letters and numbers must be on a black panel. Also in the case of a motor vessel the registe red letters and numbers should be in white upon the mizzen sail; where a funnel is carried the letters lengths where the trawl doors touch the ship’s are painted at the top where it can best be seen. Model Maker (Open) “ Novices” Champions hip for 36in. Restricted Model Yachts At Barnby Dun, near DONCASTER, Yorkshire, on the llth and 12th July, 1953, at 11 a.m. Dear Mr. Secretary and Ordinary Reader, Our Association, The Doncaster Model Yacht and entries of only one or two boats will be welcomed. M.Y.A. Rules will govern other aspects regarding entries. Please remember all boats contesting must hold valid rating certificates. My Association will provide refreshments at reasonable prices; here again one must know how many wish Power Boat Association, wish to bring to your notice and to your Club’s members an invitation to compete in the above race for which this paper, the MopDEL MAKER, is providing the whole of the prizes for which we all as sportsmen and women thank them in to avail themselves of such an opportu nity. advance. The race is open to the whole of the British Isles Entries must be in by May 12 at the latest. Entry form; please cut out and post on. and will be sailed under Model Yachting Associati on Anyone requiring bed and breakfast should write Rules. Mr. M. Fairbrother, the Racing Secretary of the M.Y.A., has kindly consented to act as O.O.D. “NOVICE” is defined thus: —A Skipper, Mate and Yacht who/which have not appeared in the first three places in any NATIONAL M.Y.A. Event. This does to me without delay so that I can try to get reason- able terms as well as comfort. It is intended to film the races in colour given suitable weather. JOHN S. REEVES. Chairman and Hon. Secretar y, Doncaster Model Yacht and Power Boat Association. not apply to any District or Club Open Event. The winner will hold the MopEL MAKER Trophy for one year, and take Ist prize. There will also be each day. a “MODEL MAKER” TROPHY ENTRY FORM—JULY I! and 2nd and 3rd prize, the value of prizes being £5 5s. Od. There will also be a special prize for the winner if 12, his yacht was built from a MODEL MAKER design, also YACHT a prize for the skipper making the longest journey to 1953, at BARNBY SKIPPER MATE DUN, DONCASTER Expiry Date of Rating Cert. REGISTERED No, compete. There will be three boats per Club allowed to enter. The entries to appear on the entry form numbered (1) (2) and (3). Number (3) will be entered on the under- (3) Standing that it is the reserve representative of the Club sending the entries in. Numbers (1) and (2) will definitely race, but Clubs will be notified seven days before the race that No. (3) need not travel, if the Racing Committee find that the boats numbered (1) and (2) provide a sufficient number of boats that can reasonably be raced in the two days. Naturally ‘* (No.3is RESERVE) N.B.—Addresses must be given. CERTIFICATE. The above Yachts hold valid rating certificates and are eligible to enter according to M.Y.A. Rules. Date Signed Hon. Sec, Yacht Club, etc. It is understood that seven days’ notice will be given in the event of No. 3 RESERVE BOAT not being required to travel. No charge will be made for admission to spectators, who will 256 be welcome. May 1953 “FITTING OUT” A MODEL MAKER REVIEW OF SOURCES OF SUPPLY FOR THE BOAT BUILDER THAT sometime Cinderella of modelling, the boat section, is at last coming into its own, and we confidently forecast that very soon it may justly claim to be as well served as any other group, thanks to the enterprise of more and more wholesalers, manufacturers and retailers who are now alive to the growing Heading: A Levison at work on an A Class order. Below: Metcalf Vane Gear; a new “toothpaste” packing for Rylard Marine Varnish; Mullett Vane as fitted to 10-rater ““Halceyon”; Britinol spirit blowlamp and adjustable soldering iron demand. We have recently commenced the compilation of a comprehensive register of sources of supply, and this article is in part the first fruits of our efforts. We had intended that it should cover the whole range of yacht and boat fittings available on the market to-day, but to our surprise there is really far too much material to be condensed into a single feature. Rather than deal sketchily with the subject we are deferring the detailed section covering radio control to a subsequent issue, contenting our- selves with names and types of general equip- ment only this month. In the same way there are still a number of firms coming into the mar- ket with new accessories for all classes of boats, and our follow-up article will give them an opportunity of finalising their lists. The model yacht movement is unique amongst modelling groups in that many of its staunchest adherents treat their boats like fullsize owners, in that they prefer to entrust the actual building of their hulls to professionals, who build to their plans and detailed instructions. Then, with finished hull before them they complete deck fittings, rigging and bend the sails. Sails, too, are often the work of recog- nised experts. Southern skippers have their own boat builder in the shape of A. Levison, of 80 Weydon Hill Road, who carries on a family business, still using many of the woodcarving tools that his father had before him. We have recently entrusted the building of our 36 in. yacht Harlequin to the Farnham shipyard, and can only say we are delighted with the work, and pleasantly surprised at the reasonable charge. It only needs time to show whether the design is as good competitively as we hope— and in this direction, of course, the builder can only work faithfully to his drawing. Midland and Northern enthusiasts have that active 257 ceee e MODEL MAKER FIRMS Ref. | A | DEALING Name | | | Manchester | Craftex 277 High Road | | E.D. (Surrey) | 18 Villiers Road, Ltd. F Kingston-on-Thames | A.A.Hales | 45 and 49 Eleanor Road, Ltd. G Bowes Park, N. J.W. Metcalf | 17 Wordsworth Road, West Bridgford, Notts H | Model Aero- drome Ltd. ‘J : | L ‘ 16 Meeting House Lane, Mullett | 61 Paradise Street, model Eng. 9P “ © i | w Eye, Deck R 130 Westminster day P 5% ” Camden Town, N.W.I B.J. Ward Bridge saree mee Fitting Co. | Web Model Rd.,| Wood Green, N.22 8 Silver Street, Stockton-on-Tees Ba W ar | : Shafts, stainls. steel Shaft and Tube & ’ threade “ A oe Shaft and Tube 8”£ oe Shaft 2, 8» ine without | ,9/- 32, of ” 5/6 | { 5 6 ae | brackets 6 | : | 1/8″ flex drive 9” var Shaft and Tube 6-12”) 5/- | | driving dog With packing gland | | Name Size Taycol Star 23x1gx2i Comet 2yexdxli] »» (geared | wan) 1Hi & sea hi i d ieee Marine ge | a | a sii Adamcraft ] | | 7,000 | — arine No. 1461 ighty Midget |2!xlixl) eee 6,000 | 4/6 ie | 6,000 — | “oe | mms Lee 1d | — ‘2x4gr2t 21b | — |3xtgxl@} — | poy | 6 | ape 13/3 15/6 | B | | | 4/6v 12/10 4/6v 13/6 | P — | fittin 9 eyelets < | | | oo se 4/il 13) — 1/3 Ife | — 1/3 | aay | | — | — tld iui @ | 10/6 | 8/6 < za fh Sk 3/- 9 | S | Yes | Se 24 06 rap | — e | 9) < sy < 4d =e = 3/5 | 2/6 = 3/9 sce o ° = —~/a@i}4#-)/ 8 | 8)? =— 5/ee x —* 4 | 7/9 i 3/= ry | ° = | —| | 8 | eae aj} u)}-—|] — Soe | we] / 8 9/2 Wee IId { Id 2/2 — a te = | He & | 10/~ ee | one 6 = Ss — | 6/- = 13 3/I ee = 15/4 6/6 | 16/6+ 10/= 3/- | = TR 4/- ri 4/= — | | — — | 6/- 2/- _ 6/- — 5/6 ee 6/6 —_ a; — a 3/6 a 3/6 —_ 1/10; — 3/- 1/3 —— — ; | | = @ | 12/6 32/6 | Yes | — _ / | | | 1/3 — | & — 3/3 1/10 9 | 2/9 — 1/6 | 2/6 | 3/1 == SAILS AND SAILCLOTH Suppli pplied HS 7 ‘ i 42” eee — ‘Union Silk”) pol | and Ditto Sat Ditto | 36” ee 9/- vee Yes! | SRG | ee aie | _ = Yes | | Ba te — | 12/3 — ae _— | M 10R or — 15/10; — 6/8 | =) measure “(eult) by tele . Bie ti {also known as Ditto. | sy 44/- lege OO): | Aah | 67/6 he = — | en —_ fo Yes A —-|— bm }| Yes = =a |= _ fee see tee Ss | loin ee tes BOAT BUILDERS AND VENDORS sosk A. Levison, 80 Weydon Hill Road, Farnham, Surrey F. A. Boardman wetailors H. Newton, 6 , 37 Thornton Avenue, Liverpool, 20 Nottingham Road, Burton-Joyce, Notts (second-hand boats) rae | £6/8/4 a: ito | | 32/6 — 1/2 10/- hears i 4/a Description 7/6 6v | €2/5/10 6v M of selling several parts as sets, impossible to list fully in space. All above firms carry wide stocks and their lists should be obtained and consulted. N 14/2 .2a| cee | 16/6 rs | Price | able from 4/6 ae 3/44 da | | Owing to wide divergence in nomenclatu re for similar articles, and methcds £1/4/3 3/500 | 2x3gxl3} = Sails, set Fiona, 36”) Ditto lona 24") oe | elie E 1/2 | Turnbuckles | 3/1 | — Travelle Obtain- abiiga | | boat tee. ‘7 & 41/.8a | 18/6 | | ns ete Volt. a FropRae| "ae waster yiornado , 5 42 — | — lod 2/ Mast slide Mast tube Mast step Main boom ferrule Sails, to | Wt. | RPM — < | i ast tube MOTORS | — StS and slide ; | — 3/- 73 rar 3 meseband A Selection only : many more are listed ELECTRIC Yes 2/- | — orse we 4/II 15/74 | res: ferrule M = at each end 45/32 shalt} aig 7” = _— $” and 5/16” per in. \6d&8d al chveaietinh HN ng 9d 7/44 | Ild Pe ail — ame = bed oie bes | All sizes | 1/3) doz. oom ws ale | 4/- pga ede g’ Tubes Brass, Phosphor bz. bgs. | luff, doz. btain- | Wil — Spidey band i 1 | 32/6 | 32/6 17/6 — Ditto sheet, SHAFT AND TUBES | 1/2 Hook, Sail R | 32/6 10/- 1/3 | 9d Hook Plate M,R | 1/3 Quadrant k @]H hank aw not normally stocked, R D[ Plate single| Ditto and bare een ete. Note.—Most model shops also deal in some degree in model boat requisites and can usually obtain special items to order for customers where Description | | Eye, scr.,doz | Ww,R 204 High Road Q@ | Tees Model Shop 3/I Eye,Gunw'le = | 4/11 Dittodouble| R Liverpool, | oO. N _ Ripmax Ltd. ! Cord, rigging R Brighton, Sussex Precision | 1 MW |M,W,R London, E.C.4 Arthur |. M ' | | i- Round M,W | Micromodels | 3 Racquet Court, Fleet St. 8 — 15/4 Flat Gooseneck Norwood Place, Bournemouth Ltd. — | Wire td. K Braine Bowsies doz. Ww,R Birmingham, II Model Aircraft) pmo) Gear Vane Ditto R | 141 Stratford Road, R | | | | Auto Steering) oR | SUPPLIED BY (All prices “From ...")|-a | Leytonstone, E.I1 | Chappell E | and 28 Corporation Street, | FITTINGS Description R NWI | 112 High Holborn, W.c.1 LowkeLtd. YACHT Status | 357 Euston Road, London, | D ITEMS Address | B | Bassett C MARINE | Road | MODEL | Bonds o’Euston | IN | Also from A, B, G, H, L, M, D B BOAT Victory Industries ; A Wide variety ae 258 AND SHIP FITTINGS fi bel Geir lise ea ne e- pa eir lists) - May 1953 skipper J. W. Metcalf, of 17 Wordsworth Road, West Bridgford, Nottingham, to cater for their needs. Mr. Metcalf can also tackle orders for sails, which are made by W. G. Baker, of 20 Richmond Road, Gosport, to whom southern orders may be sent direct. A wide range of yacht fittings are also available. Sails can also be ordered from Arthur Mullett, of 16 Meeting House Lane, Brighton. This dealer has perhaps done as much for the encouragement of model yachting as anyone else in the trade, and can supply virtually anything for yacht and boat modellers. Liverpool and district enthusiasts will need no introduction to Precision Model Engineering Co., who have for some time been expanding their boat and yacht departments, and handling Northern orders for wood packs and fittings for a number of our MODEL MAKER boat plans, in the same way that Arthur Mullett has covered the south. We recently called on Max Coote, go-ahead partner of Ripmax Ltd., 39 Parkway, Camden Town, N.W.1., and found him on the threshold of a most ambitious boat programme. For the first time, to our knowledge, he has made available a range of flywheels that covers every model engine on the British market—a task that has entailed no little research and a considerable amount of capital outlay. But there they are, on the shelves for by-return delivery. Ripmax can also offer the most effective flexible couplings—again to cover the whole range of British engines—using a common tapping for the prop-shaft end, and sizes to fit assorted engines at the other. The flexible tube is specially made neoprene tubing, which has been on test in Max’s own boat Sirius Star for over a year. Mention must also be made of two new “inching” type steering controllers that will appeal to radio control fans. These enable pre- cise rudder movement to be controlled, and each follow the same basic pattern of a threaded bar with a stout runner that moves along it, driven by a miniature electric motor until movement is stopped by a limiting cutout. E.D. version is available at £3, while the. Ripmax edition is sixpence cheaper at £2 19s. 6d. A tool we have welcomed is the Britinol spirit blow lamp and adjustable soldering iron. We can remember using this when it first came out very many years ago, but it has been limited to trade supplies until now, mainly typewriter mechanics and similar trades, but should have a great future amongst model makers, both as a workshop accessory and for pond-side repairs TOP: Ripmax R/C steering controller; Ripmax flexible couplings in three sizes; stout Bassett Lowke _ electric marine motor; a Micromodels miniature of Nelson’s “Victory only 5tin. 0 S| high ee BOAT Name Spray- 24 me Police Launch Veron Dolphin Veron Sea-Gull Royle’s Cabin Cruiser Mermaid Cabin Cruiser Valhalla Launch Olga R. Cruiser Drome Hydro- plane where a spot of soldering usually presents untold difficulties in these days of electric irons. The tables included in this article should be self-explanatory, and present the greatest amount of information that can be condensed into the space. We apologise here and now for any omissions—there are bound to be some, for new items are coming with nearly every post. Supplementary lists will be added in due course. In many instances, we should add, we have listed proprietary articles under the manufacturer, and their products will normally be available from any well stocked model retailer. We hope readers will find the feature of value to them, and would urge everyone able to add to our listings, either as manufacturers, whole- Drome Special rome Flying Spray to let us plane Fiona Ilona Jura motor — £1/15/3 I5in. | Sin. 15/3 26in. | Bin. | €1/17/10 24in. | Bin. | £1/16/0 Bin — ae — Pac — H, etc. Clockwork 4-6 v. El. H, etc. Foam Wraith El. | Airscrew 2-34 H, etc. b H, etc. £1/3/10 | ditto H, etc, | El.or Bin. | 52in. | £1/2/5 19iin.| J, bber 15/3 -75-I cc, H, etc. Airscrew -5-.75cc. H, etc. EL. H, etc. 8/1 | Jetex 200 7/0 15/3 Jetex 50 | Includes Mansour, South- | Retailers £3/7/6 | Wilmot Jetex 50 ee 2-5 or El. 25 in. | 8in. £2/12/6 | 2c. | Eand Retailers | 36 in. £5/13/0 24in. | 54 in. | £2/7/0 18 in. — £1/6/3 These | Yacht H, etc. Yacht H, etc Yacht H, etc. are the principal kits on the market at present. They are normally extensively distributed and should be obtaina ble locally to order if not already stocked. hear The E.D. R/C steering controller: LEver-ready | ditto J, aitto El.ae | £1/16/8 | To!5 cc, Hydro- this has a geared drive from the specially undercut | £1/0/2 ditto | J, ender leneeet from them in time for a further list to appear in our July issue. selected | El. | ‘Seaplane. E.D. I-2 or El. {8in. | 5in. pe bala Speedboat L,M,N etc. I-14 or El. 24in. | Tin. | £1/16/8 Kingfisher | I3in.|) Jetcraft Jetex | £3/12/10 | 2-Sor El. | F,C,D, | | 20in.) Obtainable | | 26in. | 7$in. | £2/4/0 33;in.) — from Power Biin. | £1/17/8 Adamcraft | I0in. | 4 in. salers, retailers or satisfied customers, | 34 in. | Ilin. master Veron Range Price Wave- master KITS | Length) Beam (inc. P.T.) | with commutator Max Coote’s “Sirius Star” breasting actual 14in. high waves. This boat appeared on Television on April 26 in a feature by Max on radio control 260 7 May 1953 Designing to the ‘A’ Class Rule PART FIVE -OF-A SERIES BY B. H. PRIEST, MIMARE. Now Wwe appear to have all the data at our finger tips which is available up to the present date. And before we start let us take one last quick look over the British Championship Winners since 1933. TABLE BRITISH Date | 1933 | CHAMPIONSHIP WINNERS Name | Dis- 1933/52 Sail | Glengarry 48 | 42 | 1796 Glengarry 48 | 42 | 1796 S.D. | 512| 522|1763 M 1936 | 48.75, 50 | 1796 M 60 Lady Nell | 1937 | Aktis 53 | 1700) M 1938 | Seri 51.9| 54.4| 1750) M 1939 | Heather Glen... 528) 48° | — | S.D. Rhapsody 51.9 52 | 1700 | TM 1948 | Tinker Bell 51.9| 544| 1750 1949 Scamp ... 51.35; 48 | 1623 | ol | aust cae | 1580 | S.D. 1952 | Yeoman... ...| 544 | 51.5 |. 1510 | P.T. ns ... | 54.25] 56 1580 | P.T. 1950 | Esther ... 1951 | Revanche $.D.: Ranger... Skimming Dish. | P.T.: Peg Top. 49 | — answer for the designer, if he wishes this type of boat he is freed to remain at from 51 in.—53in. L.W.L. But we all want more speed and the only answer to more speedis a longer L.W.L. There are two possible loopholesin the rule which it will be as well to examine; one is a long boat of moderate S.D. 1935 | Niaad ... | centroid to 154 in.—16 in. L.W.L. beam and, of course, we find ourselves in exactly the same position as a heavyweight, which we have already discarded. Here is the LW.L. grits fox e | Type 1934 | 1947 | hard to beat under any conditions. There is one snag, the type appears to be restricted to 51 in.—53 in. L.W.L. boats for the type needs 14.5 in. to 15 in. L.W.L. beam and 1,620 to 1,700 square inches of sail. Here is the snag. To increase water line length to 54in.—55in. will increase a moderate displacement to 56 lb.—60 lb. and reduce sail to 1,620—1,600 square inches. The beam has also had to be increased if the boat is to remain a meter- displacement taking a displacement penalty. The other is a shorter water line boat of rated displacement sailing on the same sailing length as the longer boat by taking quarter beam penalty. Let us see how it works out. Let us first examine this Quarter Beam Penalty. We M | know it is measured thus: 4/ S.D. S.D. “ioe % of L.W.L. and must always be 23 in. to 23 in. less than the L.W.L. So when heeled L.W.L. is the longer of the two lengths and is in fact the sailing length of the ship. Take a 54 in. L.W.L. boat of minimum displacement 52 lb. in which case her sailing length is 54 in. L.W.L. M.: Metercentroid. #/D min. =——— +. .4=11.2 5 From this table a number of points stand out. Firstly, only one heavyweight has won and that in the days of */ D for 52 Ib. =11.2. Hence no displacement penalty. / SAIL = 29.37-L.W.L. 39.37-54 Braine steering. Ranger, which took the Y.M. Cup to America; is heavy but of a different type. Secondly, if we can bank on heavy weather the type of Glengarry or Heather Glen will do well. Thirdly, water line length of the winners has increased since the war and sail area has been greatly reduced. Lastly, since 1948 the winners have been around the minimum displacement mark for their water line length. The vane has been responsible for alteration to the trend of design. A boat with the vane can be held up to the wind no matter how light it is even to the extent of using the helm. Here the Turner heavy has lost one of her great vantage points. The light boat will, moreover, get away quicker in light winds. On the run the lighter boat does run faster and plane long before the heavy and what is more—due to the vane—can be kept under full control. The usual method is to carry a full spinnaker even when in second suit. In the days of Braine steering it used to be how much a boat could carry to windward which dictated the sail. It is now how much can be crammed on for the run. The result, as we have all seen since the war, the complete outrunning of the heavies by the lighter boats. All this seems to add up to the fact that the heavy as an all round type must no longer be censidered. As already noted the Skimming Dish type will be’ fine if we can bank on a hard blow. This is a risk and as such I feel the designer must disregard this type also. This brings us to the Rhapsody, Seri types. Metercentroids and fine healthy all round boats. The type is 4 4 FP LW. 12°/D 39.37 -13.5 .25+.401 25.87 .25- 54 1211.2 =39.8? .651 *, Sail Area— 39.82 =1,580 square inches. Now take a 53in. L.W.L. boat 521b. with Q.B. penalty to make her sail on 54 in. 53 A 53 in. L.W.L. boat has a Q.B.L. of 100 - 5s % L.W.L. =50.24 in. To bring this up to equal a sailing length of 54 in. L.W.L. equals 54-—-50.24=3.76 in. This would mean a Q.B. penalty of 3.76 —— =1.88 in. 4/SAIL =39.37 - 33 +1.88 39.37-54.88 4 53— 1.88 25+ 263 I 127D ooo 54.88 .254+12x11.2 oi MID SECTION TYPE ‘B’ MID SECTION TYPE ‘A’ Mio SECTION aay | Se 39.37 - 13.72 -25 +.408 ~ 25.65 which is a help and have spread our displacement more throughout the length of the ship. Try it this way instead— Assume (1) A 55 in. L.W.L. boat of Min. Displacement. (2) A54in. L.W.L. boat of 52 lb. taking Q.B. penalty to make her sail as a 55in. L.W.L. boat. (3) A55in. L.W.L. boat of 52 Ib. taking caper penalty. 5 (i) #/D min. or 55in. L.W.L.=—+.4=11+.4=114 5 4 1,480 cu. inches =54.8 Ib. 39.37-13.75 -653 =39.3 54 51.16 Vs fiDifferenpce to make %thisL.W.L.= equal to a 55in. L.W.L. 2) The O.B.L. for 54in. L.W.L.=100 - o/—= boat =55 — 51.16 =3.84 in. Quarter Beam Penalty =3.84=1.92 in. ——— 2 The reader will say ‘““Here is a man preaching length not and yet giving us a design of 54 in. L.W.L.; why go to 56in. L.W.L. ?” The simple reason is that 56 in.L.W.L. on 12.5in. L.W.L. Beam at 58 Ibs. displace ment is bringing with it a new problem which although being solvable Ihavenotattempted to put into practice as yet and because of which it would notbe fair to thrust it with no previous experience builder. on the would-be Looking at the profile, or if you like it, the midship buttock of the canoe body excluding the keel of a normal type of boat, and it will be this. The answer shown in Saracen and used in Yeoman and Ranger is to make the profile [- for the lower the stern wave the less energy used. With all this in mind it will be realised that 58 lb. on 12} in. beam will not only increase this angle, but cut down the overhangs and make a really hard curve around the mid-section. Again we have to adopt manned up practice if we are to get round the problem and put reverse curve in the profile. This will overcome the problem of keeping good overhangs and low angle of delivery, but will concentrate a large portion of the displacement amidships. To overcome this it would be necessary to put terrific flare in the ends to give them very large reserve buoyancy to counteract the wish of a boat like this to bucket in a seaway. I am certain all will agree that to put these radical and as yet untried points into a new design which was not The idea is shown in Fig. 3, types a, b and c. 55 SAIL =1,545 square inches. the profile we would cut down our overhangs too much to allow ne for myself would not be fair. 25.62 .25+ .403 .25+12x11.4 TYPE 'C’ keep the angle of run to the water line as low as possible Or we have lost 55 square inches for the extra sailing length although we have gained a longer bearing length 4/SAIL - 39.37- 55 curve for the run. In a boat of a deep body section, such as Saracen, it will be noted that if curves were put in the profile we would have no overhang length. In a boat of this type it is essential to have plenty of reserve buoyancy or lift in the ends (hence the flare in Saracen’s end sections) otherwise the boat is lifeless. By curving straight except for the curve round the mid-section. In ‘Saracen and Ranger this idea is carried out to the limit. It must be realised that we must endeavour to .. Sail Area = 392 = 1,525 square inches. . =; pif Tre Lok ast an se imi seam wet ogracewent eos [FIG 3] =39 -658 forward of the mid-section and then straightens out into a flatter fons wo seer |_ Pat THPE's. LOA SIL wt 54° Lwi SEAM {5'5" DISPLACEMENT 36 LB. 00° Lut. $4" LwL BEAM 135° OGPLACEMEMT 815.9. ‘TYPE LOA cai MID SECTION MID SECTION noted that it runs in a gentle curve to the chest, which is usually just Ss} 3 ILL aan ayy SUL AT MODEL MAKER Yet another method of getting around the general problem would be taking a fair amount of displacement in very slack garboards; this is a cheap method of getting displacement, but it is at the cost of keel efficiency. The last and also as yet untried method is to put fair displacement into the keel. A normal keel is shown. in Fig. 4A. It will be noted that there is approximately 6 lb. of displacement in it. Alongside this is drawn a keel which at its maximum beam is 4 in. and this carries a displacement of some 11} Ib. (Fig. 4B). This would mean that some 54 lb. cubic displacement can be taken out of the canoe body. We would, of course, make the body less deep, of flatter section and with flatter buttocks. The idea has been tried out in a very successful ocean racer, but not in model yachting, which still awaits an adventure-loving designer to try it out, The author feels the gamble may prove its worth for, as will be noted from the sketch, even with a beam of 4 in. a respectable airfoil section can be maintained. Another advantage will be that the centre of gravity of the lead will be able to be kept very low. (To be concluded) NS Sal NSS os FIG.4B APPROX. DISPLACEMENT II! LB. FIG.4A, APPROX. DISPLACEMENT 6 LB iia MODEL MAKER HARLEQUIN 36 IN. REST CLASS YACHT BY ay elimination of skin friction of the wetted surface is of paramount importance in any craft where maximum speed is sine-qua-non, and for this reason every endeavour must be made to achieve an immaculate paint surface of the hull.. This is not difficult if three basic principles are adhered to:— Now give three of four -coats of lead under- coat, letting each dry thoroughly before rubbing down with waterproof paper used with plenty of water, sponging away the paint scum as the work proceeds. After each coat mark the L.W.L. and do not forget to plug the hole for the rudder stock to keep out the paint; the rudder you will paint at the same time as the hull. I must leave you to judge how the “build up” is proceeding after you have applied four coats, if you are not happy with the coverage be patient and keep going, remember eight thin coats give much better results than four thick (a) Preparation of surface; (b) Choice of materials; (c) Care in application of undercoating and enamels. (a) Preparation of Surface. This consists of rubbing down the bare wood with successively finer grades of abrasive paper until the surface is literally polished and quite free from blemishes of any kind. Then give the hull— inside and out—a coat of turpentine and varnish 50/50. Let this dry and rub down the outside with finest abrasive paper; give a further coat, both inside and out—this time reducing the turpentine content to 25 per cent. This mixture will have soaked into the wood and formed a key for the building up of the body coats. ones. Now lous enamel, and here we must cleanliness of brushes and surface ensure the work being free of dust particles. (b) Choice of Materials. You cannot expect good results from poor tools or materials so do not attempt to save a few pence here—for it will be only a few pence. You will need two decorator’s quality flat brushes 1 in. wide— one for paint and the other for varnish, a halfpint tin of white lead undercoating and two small tins of enamel of the colours chosen for your colour scheme. for the remember that it is a waste of time to attempt to apply this type of pigment in a chilled room. Paint, job and atmosphere should be in the region of 70° Fahr. if good results are to be expected, and this is where patience and much care has to be exercised, coupled with scrupu- to In order to define sharply the dividing line between the colours the use of transparent selfadhesive tape is recommended; the width should be in. Stick this on the L.W.L. and enamel down to it, removing the tape after painting to avoid a hard ridge. The enamels I have recommended are of the synthetic type which means that they are quick setting but slow drying. This sounds somewhat of a paradox; what it really means is that the surface sets in an hour or so, but the main body does not harden for approximately 6 hours with the result that brush marks are eliminated, provided the enamel is applied with a fairly full brush, brushed right out in one direction only, back on to the part already covered, and laid off by This is purely a matter of personal choice, but a two colour hull, with the darker colour on the topsides, looks better than a single colour hull or with the dark shade below the waterline. I have a preference for ivory and red, cream and green, light and dark green or white and royal blue, all of which look well with a light cream deck and mahogany covering board and king plank. (c) Application. Whether you fit the deck before painting or afterwards is for you to decide. I always finish my decks right off, enamelling, lining and varnishing before fitting, then finish the hull painting before fitting deck, coaming and deck fittings. / gentle strokes with the top of the brush. Each coat must be gently rubbed down with wet abrasive paper only when thoroughly dry, and masked between each coat. Unless this is done the masking tape will pick up the surface. These enamels have excellent covering powers and three coats are usually sufficient to provide a surface akin to spray application. After the first coat use pumice powder on a wet Assuming you follow my system and have before you the hull primed with the varnish/ turpentine coats, the waterline point is visible through this priming coat and must be kept visible throughout subsequent operations, so indicate its position by means of dots put in with a copying ink pencil. felt pad for rubbing down (except the final coat) and suspend the model deck up to prevent dust settling on the surface while the enamel is drying. 276 May 1953 INSTALMENT HULL, MAST, VARIOUS TINGS. A IN NEXT OUR EXPLAIN FINAL THE SAILMAKING AND DECK FIT- ARTICLE ISSUE WILL ART AT OF HOME As will be seen from the foregoing, the proper painting of a racing yacht hull is a lengthy procedure and the time between coats need not be wasted as this period can be employed in making the spars and their fittings. Mast and Spars In order to reduce wind resistance and air flow interference with the sails it was originally intended to fit a 2in. dia. Birmabright mast to the prototype, but owing to delay in delivery a 4 in. dia. spruce mast had to be used. Birmabright masts and fittings will, however, be available shortly and these can be supplied by The Precision Model Engineering Co., Ltd., 61 Paradise Street, Liverpool, 1, in due course. The metal Birmabright is one of the aluminium/magnesium alloys with a toughness similar to mild steel, but slightly lighter than pure aluminium; the weight of a mast for “Harlequin” comes out at 2? ounces without fittings. All fittings should be of Birmabright or stainless steel, as the use of brass or copper for this purpose sets up a galvanic action resulting in extreme corrosion. Staying arrangements as shown on the plans have been worked out by Birmabright’s Naval Architect specially for the benefit of “Model Maker” constructors. Exactly the same staying arrangements are applicable to 4 in. dia. spruce masts. As some of my readers may prefer to fit the spruce mast, the following remarks will refer to that type of spar. The diameter is constant at 4in. from the keel to within 10in. from the top where it tapers to 3in., the whole taper being on the The two pictures show “Harlequin” with hull painted in red and blue with a white dividing line, as she was collected by Mr. Levison, prior to rigging and bending the sails: note the very simple yet efficient stand, which is screwed into the base of her travelling box after Small side. plated screw eyes are inserted on the after side at 5 in. intervals, the first one being positioned 8 in. from gooseneck band. A jack line of 24 gauge brass or stainless steel wire is inserted through each screw eye and each end soldered to a small wireless terminal tag which is, in turn, attached to the mast by means of round head 3in. x No. 1 wood screw. To ensure a taut jackline the mast should be very slightly bowed before inserting the second screw. Before proceeding further I had better mention finish for all spars. I need not remind you that they should be sanded really smooth, after which they may be varnished or french polished; my preference is for the latter finish as it is so much quicker, and to my way of thinking, quite as durable; however, the choice is yours, but whichever finish is selected it should, of course, be applied before any fittings are attached. ———— AND MAKING a FINISHING SPARS AND PAINTING COVERS = LONG THIS THE REEVE Returning to the mast, the cap and back stay outrigger is modified for a wood mast and Fig. I clearly shows this fitting. The back stay is braided flax fishing line adjusted by means of a bowsie. Braided flax line is specified throughout for all rigging cord as it stands up to an awful lot of handling and stretches very a BERNARD Lat DRILL FOR MAIN SAIL HALLIARD quinen ora i } ‘eves FOR MAIN SHROUDS oo € ge chased at any good “G= FIG.I. there will be no need for fixing bolts as the taper on the spar itself will keep them in place. Talking of brass sheet for fittings I find Halford’s cycle shops stock shim brass in cut pieces about 6 in. x 4 in. and a piece .022 thick is equal to 24 gauge and just the thing for this work. Looking at the drawing you will find there is a Sliding traveller fitted to carry the clew hook and swivel for the main sail. This is necessafy as the main sail is loose footed. Slide this fitting on the boom before fixing the boom end clip which is kept in place by means of two screw eyes for the beating. gye. Although a clamping bolt is shown you need not use this if the clip is bent up on the boom as suggested _ ; asa fishing tackle shop. MAST HEAD CAP. Coming downstairs from the cap we come to the jumper strut. Details of this are shown on Sheet 2 of the plans together with its position on the mast; the same remark applies to the 6 in. spreaders. On Sheet 2 will also be found details of the gooseneck and mast band, but to supplement this a diagrammatic view of this component is shown here which makes it easier for constructors to follow who have facilities for making their own (Fig. 2). above. o STAGGE REO CSK. HOLES = FOR NO. | 24 SMG. | NO.32 ALL JOINTS TO BE | MAST ‘| SILVER SOLDERED. FINISH SATIN CHROME. 6BA | THIS SHOULDER MUST COME 1/32" BELOW LUG ON MASTBAND. ve" NO. 38 DRILL 1/32" R © __ KICKING STRAP PLATE 6 BA.NUT FIG.2. MAST BAND & GOOSENECK. 1 esta eakn es Cation Ess oF - ~ You M16" HOLES ON 1/8"CRS, ° et | [Fe FIG. 3. MAST Particulars of this spar will be found It consists of a 3$in. length on Sheet 2. of +in. square spruce slightly rounded on the corners. It is attached to the bows by means of a gammon iron.and heel plate bent to fit the bowsprit from 24 gauge brass and attached to the deck by means of ?in. round head No. 1 screws. @n the upper side of the bowsprit is mounted the jib rack 3 in. long made of 20 gauge brass 3/16in. wide, and twelve 3/32in. diameter holes are drilled to accommodate the hook on the jib boom. Details of the jib rack are shown on Sheet 2 and should make its construction : quite clear. Main Boom Again the details of this spar shown on Sheet 2 will make the construction clear. The spar was cut from a piece of spruce 20 in. long by 4 in. deep by } in wide, the top being parallel and the underside tapered to 3in. each end, the widest part being approximately two-thirds There are three bands spaced as shown and these are bent up from 24 gauge brass, soldered and drilled. If these are bent up on the spar passes I of through always insert sail eyelets as the a this prevents the outhaul cutting into the spar. I do not think there is any need to discuss at any length the fitting out of the boom with its jackline, steering lines, beating sheet SLIDE & PLATE. and kicking strap as the position and attachment of these are clearly shown. You can obtain braided flax line in 25 yard hanks. In the prototype I was only able to obtain this in green, although white would have been nicer for this particular job. Its thickness should be such that it just passes through the holes in the circular bowies—these, by the way, you can obtain from the suppliers mentioned earlier together with flat bowies. To my novice reader I would point out that there is a right and a wrong way to reeve these flat bowies: note this from the drawings. Jib Booms You will require three—one for each suit—as the jibs are permanently bent to their respective spars. The material is } in. round spruce; if you buy 2 in. square you can plane this down to the requisite size. Its fittings are few as will be seen, but the outer end ferrule is best purchased as this conical fitting is not too easy to make. The jib club should have its end coned to fit this, and if placed in position over a tacky coat of varnish it will hold with the jack line in position. Previously I mentioned french polishing all spars, but sheuld you require a really superfine finish, give two coats of yacht varnish after french polishing. 2 ORILL 1/16" Spars: The Bowsprit from the outer end. couple ae %s" +—-—_______ 3" | boom SIDE 2 we ym READ, haul PLATE ad- . |DIA.TO} pRILL SUIT | NO35 e pote mn eae i = DRILL | sooVa? WIDE : Where the mainsail out- 278 CSK. FOR 378"NO.1 SCREWS Se tha Lewes DRILL FOR BACK STAY May 1953 Spinnaker Boom common with all other fittings is satin chrome. The slide should have the holes for the four i. in. x No. 1 counter-sunk screws well and carefully countersunk as the plate must slide freely in the grooves and over these screwheads. Note ihat the 1/16 holes for the locking pin are staggered with opposite numbers so as to pro- vide a fine adjustment of the sliding plate. ree Ta | 101 eex } a'r FORE HORSE MAIN HORSE DETAIL OF TRAVELLER. FIG.4. FORE & MAIN SHEET HORSES. 12 SW.G. WIRE Sheet Horses (Fig. 4.) Again fully dimensioned drawings are given. There are different types of travellers in use— the one illustrated is typical; whichever kind you decide to use make sure there is no possi- bility of the traveller binding on the arm. Hatch (Fig. 5) This is a straightforward job in obeche with a cork base to fit under the rim of the hatch. To secure the hatch I always fit an elastic band to a screw eye on the underside of the hatch with a hook at the lower end engaging with the carrying handle as I once had a model sink 4 Ju y, FIG.8. DECK HOOKS. ; | ef ae ive" FIG.7. BOTTLE SCREWS FOR MAIN SHROUDS. .5. HATCH. FIG A-EYE PLATE. B—d>-PRESSED TYPE PO! ISHED OBECHI MATERIAI.: C- SPINNAKER SHEET HOO one of the coldest jobs I ever undertook—I still take a very dim view of early spring bathing. Shroud Plates (Fig. 6) This is a simple bending job in 24 gauge brass and needs no further comment. ; Rigging Screws (Fig. 7) As right and left handed taps are needed to produce this component I recommend you purchase these items. They are essentially a lathe job and must be well made as the shrouds, even on a 36 in. model, can produce quite a pull. Deck Screws (Fig. 7) The eye plate A is a simple job to make, but type B is a pressed job and beyond the average amateur. It is to be preferred as it is antifouling. The spinnaker hook is again quite easy to make and also cheap to buy, but hard soldering please for strength and peace of mind. The Braine Steering Gear (Fig. 9) This is a very important component and any faulty workmanship causing binding between the rudder tube and stock will be reflected in the DRILL NO. 43. (6) — f — — Ls DECK PLATE } | TUBE TO BE = eae he TT CODA i me: PALM FIEGE f (\_-arass Tuse = 3/4 ca eae ve” SOLID PLUG orcviercu.rore| PINTLE =f ia” Let —L | |g 5/6″x 1/16″ aie PINTLE PLATE 1/4″ X1/i6″ : I” LONG. DETAILS OF RUDDER STOCK & TRUNK OUT WOLLOWED FIT TUBE a ZEA ToSTOCK J, PALM PIECE 174″ 0/0. Ka STOCK y MOTE: SKEGARE & “ZA4) RUDDER | E An ne | \ ‘ : HOOK FOR ELASTIC MM ca, ia | EASY FIT IN Co BEAM 316″ 0/0 BRASS QUADRANT TAP 6 B.A? a ARM a) = — Ds ’ } } PINTLE BEARING ASSEMBLY OF STEERING GEAR GOMPLETE FIG.9. DETAILS OF BRAINE STEERING GEAR. = during hard sailing owing to. the hatch coming adrift. This happened during a particularly cold April and the recovery of that model was SOLID PLUG TAPPED 6 B.A. ENLARGED 5 eee So much for the spars and their fittings which you can make in between painting operations. Our next task is— Deck Fittings The first of these is the Mast Slide and Plate (Fig. 3), which is a fully dimensioned drawing and should cause no difficulty. As before, the material is 24 gauge brass and the finish in 4 ‘ 2 OFF. 24 SWG BRASS = tune moments. DRILL 9¥32″ ON 3716″ CRS. FIG.6. SHROUD PLATES a a ee ioe specially for “Harlequin” and from personal inspection I can recommend them as a firstclass job with all joints hard soldered. If you elect to make your own fittings do not use soft soldering as one day a joint will fail and these failures always take place at the most inoppot- 56 re} on 2″ With the exception of the swivel inner end ferrule this spar is very easy to make and rig. The ferrule is fitted with a pin to engage with the tubes on the goose-neck so as to provide a universal joint, and once again this fitting is available to readers who have no facilities for making their own. The Precision Model Engineering Co., 61 Paradise Street, Liverpool, 1, have made a full range of these fittings MODEL MAKER performance of the model as a whole. The rudder tube consists of a piece of 1 in. O.D. brass tube 53 in. long and the stock another similar length of 3/16 in. O.D. tube. The odd = In. is cut from the tube and to this short length is hard soldered the quadrant and arm % in. apart as shown in the drawing. The lower 24 in. is cut back as shown and drilled to take three 3 in. countersunk brass screws. To prevent the tube being bent during drilling operations it must rest on a jig. This is simply a piece of waste wood with a 1 in. groove in it which can be held in the vice and which will support the tube over its full length. ‘When drilled it is fitted to the hull before the deck is put on and supported at the top by means of a U clip screwed to the appropriate deck beam. At the base inside the hull is Tension 11) Slide (Fig. There is no need ; BO iver SWDEuES| HO secrioN 7s to elaborate on this “= as its fabrication should be quite clear from the drawing. ES secrion FiG.11. TENSION SLIDE. eee Its position is 4 in. forward of the steering quadrant tail. As previously mentioned the whole of the steering gear components are available through the suppliers already named should any of my readers not feel sufficiently confident to under- take this work themselves. é My next and final instalment will deal with the very important job of sail making, which will be treated fully as sails can either make or mar any sailing yacht. sweated a brass palm piece which is coated with white lead paint and screwed to the hull to form a water-tight joint. The rudder stock consisting of the 3/16 in. diameter tube has a piece of rod 3 in. long sweated into it at top and bottom. The bottom HORSES THE sign of binding, the pin being pointed to rest on the bottom of the drilled hole. The top plug and the sleeve carrying the quadrant are drilled and tapped 6 B.A. as shown. The rudder blade has its back hollowed out with a rat-tail file to accommodate the stock which is drilled as shown. Although I did not mention the fact it is obvious that the back of the skeg must also be hollowed out to allow the cut-away rudder tube to fit flush. era: We” HOLES on ee ——— The Steering Quadrant (Fig, 10) QUADRANT HOOKS + ad al d FIG. 10. QUADRANT. 24 SWG. BRASS. (SEE ALSO FIG, 9.) Normally this is in one piece, but as the “Harlequin’s rudder is set well aft, the arm is a separate unit facing forward: both must be silver soldered to the tubular sleeve and secured to the stock by means of the 6 B.A. screw as shown. At the end of the arm is silver soldered an oval ring through which the elastic tensioning cord is passed. This is controlled by means of a lanyard and flat hook on the tran- som. All of this is shown in the drawing. FIGURES CORONATION FOR COACH (continued from page 272) plug is drilled with a No. 49 drill to give clear- ance for the 1/16 in. wire bearing pin. This hole must be { in. deep and drilled upright and central to form the bearing. Fit the pintle plate to the base of the skeg in the position shown and test to see that the whole rotates freely with no AND Materials ; The following list gives principal materials required for a complete set of horses and figures. Material for baseboard is not included. PLYWOOD: 3/16 in. thick. FRETWOOD: 4in. thick (fine-grained but not too hard). HARDWOOD STRIP: 1 ft. of 3 in. x 4 in. BALSA: 4 in. square strip. “BARBOLA PASTE”: Approximately 4 1b. required. See note in Coach instructions (Dec. 1952 MopEL MAKER). Manufactured by Winsor & Newton Ltd., in tins containing up to 21 ozs., and obtainable at ‘ art-and-craft” shops. SUNDRIES: 24 yds. scarlet plastic thonging (+ in. wide). + yd. scarlet book-cloth (obtainable from ‘artand-craft ” shops). Scarlet plastic sheeting (imitation leather) about 1/64 in. thick (see notes in Part 2 of article). tin. Aluminium Tubing—approximately 1ft. ‘ 1 doz. + in. Whit. washers. 19 G. Brass wire. 16 G. Wire (hard-drawn brass or steel). 22 G. Metal sheet. 1/16 in. x 1/64 in. Brass -strip. 4 skeins of Grey Embroidery Silk. Thin nylon cord—white and blue. Large-headed +in.-long pins (brass, if possible). Cartridge paper and thin card. “ Seccotine ” and “ Durofix ” (or equivalents). PAINTS: Tin of highest quality Flat White Undercoating. Artists’ Oil Colours: Black, Vandyke Brown, Scarlet Lake. Yellow Ochre, Green. Gold Paint (see note in Coach instructions—Dec. 1952 MopeEL MAKER—where “ Starline Chinese Lacquer—Temple Gold” was especially recommended). MODEL MAKER ‘MODEL YACHT CLUB | NOTES BY. “COMMODORE Ne J Poole M.Y. & P.B.C. ; Event of the year at any rate for Southern boat enthusiasts will undoubtedly be the Poole Club’s Radio Regatta, taking place on the week-end of June 6 and 7. Since last year when the inaugural meeting was held considerable improvements have been made in sailing facilities by the construction of a catwalk which now provides one of the pleasantest sailing waters in the south. This was officially opened by the Mayor of Poole, Ald. G. Bravery, on April 4, who fired the official starting guns for the opening of the 1953 sailing season. Nearly everyone with a radio control interest seems likely to be there, competing in one or more of the five events. These will comprise two events for r/c yachts, one being a handicap and the other a race in. heats of two boats; then there will be two two-lap steering competitions, one being confined to electrically-driven boats, and the other oven to all forms of motive power, and finally a two-lap speed event. All races will be over a triangular buoyed course. Would-be entrants may care to have their names on the club mailing list and should write to the Hon. Secretary, Miss P. Robinson, 37 Valley Road, Bournemouth West. Doncaster M.Y. & P.B.C. An inter-club event against Bradford M.Y.C. gave members a pleasant opportunity of sailing 36 in. boats over the National event waters. their Secretary Reeves with his new Duck-tyve boat built by Adams, of Yarmouth, Reelew took second place on its second race outing with 29 points. Winner was Ken Chadwick, of Bradford, with another Duck also built by Adams. To complete the Adams interest third boat Condor, a newly-acquired second-hand boat of Finch design skippered by Mr. Lyles, of Bradford, was mated by Adams, of Yarmouth. Wicksteed M.Y. & P.B.C. The Midland District Coronation Championship for 36 in. restricted class yachts will be held at Wicksteed on Jume 21. Teas and/or lunches may In addition to a well-filled club fixture list which numbers such events as the Diamond Jubilee Cup for 10-Raters on May 10, it is proposed to hold a special event to commemorate thte Coronation, details of which will be announced. Hi be booked on application to G. S. Thorne, 8 Meeting Lane, Burton Latimer. Model Yacht Sailing Association We welcome the insertion of M.Y.S.A. events in our columns, and much appreciate the kind comments of their publicity officer on our activities, which have a special value from this old-established club going back to 1876. How many other clubs go back as far we cannot offhand recall but would imagine that only Ryde, I1.0.W., could challenge them on dates. What memories it awakens to think of early members going down to the Round Pond to sail at a time when the newly-erected Albert Memorial was the epitome of Victorian taste, and weeds had hardly any time to get well-rooted in the pond! Yachting at Llandudno Another Radio Controlled yacht racing event of particular interest to enthusiasts in Wales and the West will be held at Llandudno on August 17. Those who have regretfully considered distances too far for more central events may well tackle this trip. Another innovation by the Publicity Association is to run Junior Races every Wednesday afternoon from July 30 to August 26 (except Gala Day, August 5)—there are no-entrance fees. Yachtsmen thinking of a holiday in this boat-conscious resort should write to Publicity Manager E. V. Williams, Town Hall, Llandudno. Mr. Williams is particularly anxious that events should go well and looks forward to extensive support from visitors. International Radio Controlled Models Society I.R.C.M.S. will be holding their Annual International Contests at Southend-on-Sea on July 25 to 26. -A contest for boats is scheduled for Saturday, July 25. Further particulars and entry forms from Mr. R. Ing, 36 London, N.W.4. Sunny Gardens Road, Hendon, ; Elettra Model Boat Club Elettra M.B.C. is another club devoted to radio controlled craft and is lucky enough to be able to use the Welsh Harp for its meetings. The club operates from the section adjoining Handley Page Sports Club. Some twenty meetings are envisaged for 1953. Interested non-members are invited to Open Meetings on May 17 and Sevtember 6, when contests will be organised according to the nature of visitors’ special needs, and an opportunity given for a general gettogether. The 1952 Committee has been re-elected for 1953 and comprises Hon. Secretary F. C. Hird, and committee men W. S. Warne and J. Gascoigne, who will be remembered as pioneers in the model car racing world. Address of secretary is 90 Aberdale Gardens, Potters Bar, Middlesex. General Much of this month’s report deals with radio control events; this is typical of a modern trend and looks like producing some real progress in 1953. Model Yacht clubs are urged to provide news of their events for inclusion now that the active sailing season is well under way. Overseas Subscriptions … Annual Subscription for MODEL MAKER can be aecepted from any country in the world. Subscribers should send the sterling equivalent of 25/- by INTERNATIONAL MONEY ORDER to… ** Hodel Maker’’ Subscription Dept. ARGUS 288 PRESS LTD., 42-44 HOPTON LONDON, S.E.1, ENGLAND STREET MODEL MAKER “In Defence of Sunkiss” little, in fact it is hardly noticeable in the tank due to the weight being in the centre, more or less, of the boat, and not at the ends. To call the fitting of this rig equivalent to the use of shifting ballast is just ridiculous. Sir, With reference to Mr. Tucker’s article on the Sunkiss, as the owner of, I believe, the first Sunkiss in Great Britain, built in 1949, and for the last two years being sailed with a sliding rig, I should like to correct a few of Mr. Tucker’s remarks. First, it is obvious he has never seen a Sunkiss in action, The Sunkiss is not intended to resemble the prototype in any shape or form, she was designed as a racing model yacht using the rule up to the full. The Sunkiss is a very fine sea boat, one of the best in the M-class, and can be raced under all sorts of conditions. She is exceedingly fast on and off the wind and one of the few “M” designs that do not bury the bow when running under gale conditions. I cannot understand Mr. Tucker’s point about her supposing to resemble the prototype when some of his designs are far from it. Can anybody imagine risking their lives on a “ Duck ” because he would not say the sliding rig gives a reasonably good performance—in effect, it gives a remarkably good performance—and furthermore it does not make matters very much easier for the inexpert skipper; in point of fact, it is the opposite. An experienced skipper has his hands quite full in racing a Sunkiss in keen competition. An inexpert skipper would put up such a poor show that he would in disgust throw the gear overboard. In regard to the weight of the gear, once again it appears Mr. Tucker has not bothered to weigh one, because the one on my Sunkiss, made from stainless steel, is far from 14 Ib. in weight. With reference to the 7 in. movement, this is 34in. each way from centre and alters the fore and aft trim of the boat very, very in the open sea, the crew would be swept over the stern due to the amount of water coming over the fore deck in no time, whereas the Sunkiss does not do this. No doubt Mr. Tucker’s “ Ducks ” sail well on tree-girt London lakes, but they have been laughed off the premier lakes of the country due to their poor sailing qualities in a sea. Yours faithfully, Birkenhead M.Y.C. W. H. Jones. An Open Letter to Mr. Bernard Reeve Dear Mr. Reeve, Until the publication of the above design, I had not had the pleasure of hearing your name or seeing any of your work. …. . 1948 National Championship — Won_ by Donald Duck III (C. Adams, Nelson Gardens M.Y.C.). 1949 National Championship — The same boat and skipper tied for Ist place but lost the sail-off through running into a calm patch. 1950 National Championship — Won_ by Quacky II (D. A. Macdonald, Clapham M.Y.C.) with 83 out of a possible 90 points. Of the seven points lost, five went to a sister However, one is always glad to welcome newcomers to model ’ yachting. In your article you write:-— While there is nothing freakish in this design to those who have made a close study of the trend of modern design, the lines may appear somewhat unorthodox and at variance with previously accepted ideas. I refer in particular to the rounded bow and the full sections of the “ Duck.” entry. Later in your article you refer to Harlequin as being an “ advanced design.” I think reasonable exception can be taken to these claims, since my Donald Duck design contains not only these features which you claim are novel and unorthodox, but a number of other more advanced features which do not figure in your Harlequin. For your information, Donald Duck was designed in 1939, but for obvious reasons remained unbuilt until 1947. However, since then she has been reasonably successful, her record being: — 296 1951 National Championship — Neither of the above boats competed. 1952 National Champions — hip Again won by Quaeky II (D. A. Macdonald). In 1952, Jemima Duck (D. A. Macdonald, Clapham M.Y.C.) won the Metropolitan and Southern Area M-class Championship with 65 out of a possible 70 points.(two runs lost, and one re-sail not taken and halved). A sister boat, Troll (N. D. Hatfield, Southend M.Y.C.), was 2nd a few points behind. Numerous other less important events have been won by “ Ducks” in both classes. Yours very truly, H. B. TUCKER. London, N.3.