The Model Yachtsman: Volume 1, Number 11 – February 1929

——— THE MODEL, ACH TSMAN oN PRICE G°’ Vel te, T1 “February, 1929 The Medel Yachtsman. February 1929 W. Established 1906. Jd. DANIELS, begs to announce that he has never discontinued making SAILS, and that all Sails supplied by him are entirely his own production. Sails of the best ‘‘Swallow Wing’’ Silk Union only. This Cloth has been shrunk and miidew-proofed. This Speciality Price ready for attaching to spars 1/3 per 100 square inches. Post Free. Cloth is obtainable only from me. 36ins. wide, 3/= per yard. MODEL RACING YACHTS to any Class or Rating a Speciality. Models supplied at any stage of completion. ‘Invader,’ ‘‘Crusader,’’ ‘‘Defiance,” ‘‘Intruder,’ ‘‘ Modesty,” **Ella,’’ etc. *Viola,” winner of BRANDRAM Cup. Designer of ‘‘Penguin.”’ ‘Nancy Stair,” winner of Scottish CHAMPIONSHIP, “A” CLASS. 10 METRES. 6 METRES. 18 FOOTERS. ‘Briton,’ winner of Nyria Cup. “Golden Guinea,” ‘‘Sans Pariel,” etc. Every DANIELS’ Boat has always reached the Finals in the INTERNATIONAL RACES at Gosport. Designer and Builder of Four Consecutive INTERNATIONAL CHAMPIONS. FITTINGS OF LATEST PATTERN. Steering Gears, etc., Spars and Sundries made to Customer’s requirements. Workshop: 331, St. JOHN STREET, LONDON, E.C.1. Phone: 4708 Clerkenwell. AAAA SALES AND WANTS. Advertisements are inserted in these columns at the rate of One Penny per word; minimum charge for advertisement One Shilling. Single letters or figures are charged as words, and a compound word as two words, The advertisers name and address are charged for. Aocharge of 6d, extra to cover postages is made for **Box”’ Replies, care of these offices. The pe words must appear at the end of advertisement; “Box—, “Model ‘achtsman”’ Offices, for which usual rate per word will be charged. When (Advertisers need not include our full address). replying to a “Box Ne.” Advt., address your envelope: Advertiser, Box——, ‘I’he Model Yachteman,” Golden House, Gt, Pulteney St., London, W.1. Advertismente for these eolumns must be zecompanied bya remittance, either by Postal Order or stamps, and addressed to the Advertisement Manager, “The Model Yachtsman,” Golden House, Gt. Pulteney St., London, W.1. Announcements must reach these offices not later than the 10th of the month preceding the month of issue. In advertising Boats for Sale or Wanted advertisers should state where possible, “Class of Boat.” These will be classijie under their separate headings; wunclassed Models, and articles other than Boats, un Miscellaneous. _ FOR SALE. 18-footer. Littlejohn design. A thoroughly wellmade and finished Model. Complete with Sails Everett, 3, £5. and in perfect condition. Springwell Villas, Hook Heath, Woking. MODEL YACHTS built to any design, plank and John Charges moderate. rib construction. Bannatyne, 34, Gardner St., Partick, Glasgow. Large Model similar in size and appearance to A£6. Prize winner. Good condition. class. Carriage extra. Bannatyne, as above. 6-Metre “RANZA.” 1fin. Mahogany planking. everthing of the best. £16. Turner design. Sail box, stand, cover; Very fast and weatherly. J. A. Stewart, 104, Cheapside Street, Glasgow. 14ft. International Dinghy. Hollow spars. Also 16ft. Canadian Canoe, cedar strip, by Peterborough Canoe Co. In beautiful condition. Apply Stewart, as above. WANTED. Model of Full-rigged Ship or other Sailing Ships with some history. Offices. Box 76,“Model Yachtsman” — Designer and Builder in every detail of the following successful Class Racing Models. . MODEL THE AYACHTSMAN / | — eee Sas A Vol. 1. MONTHLY otal ~ Passed Cutwater of chain, mm an as or tvon Throughstop shown a big ship of Usually tron band 2 Lower Gammon LASHING >? Y February 1929 The Model Yachtsman. starboard tack, on the backstays in fact. 163 All falls We have now disposed of all the running and have been omitted also for the sake of clearness, standing rigging, except the sheets, and these will but the leads were plainly given in my last article. In a vessel with double topsails and double topgallants, the lower topsail yard and lower topgallant yard had trusses and no halliards. be given in my concluding article next month. I propose to give two separate plates in this with the fore-and-aft sails in one and the square sails in the other. (Lo be concluded) Vards & Running Rigging of SA a Sull – Rigged Ship. 1840 = 1880. 32 4a ] BX = Wh 9g 48 sah\s0 6 ] = 2 7 3 1S 30 31 ‘ : A28 / J Uy aq 1 Foreyard 2 Mainyard 3 Cross-Jack Yard 21 4 Fore Topsail Yard Fore Topgallant Lifts 39 22 Main Topsail Yard Mizen Topsail Yard Fore Topgallant Yard Main Topgallant Yard Mizen Topgallant Yard Fore Royal Yard Main Royal Yard Main Topgallant Lifts 23 24 25 26 27 28 29 40 Mizen Topgallant Lifts Fore Royal Lifts Main Royal Lifts Mizen Royal Lifts Fore Braces Main Braces Cross-jack Braces Fore Topsail Braces Main Topsail Braces Mizen Topsail Braces Fore Topgallant Braces Main Topgallant Braces Mizen Topgallant Braces Fore Royal Braces Mizen Topsail 41 Fore Topgallant Halliards Main Topgallant Halliards Mizen Topgallant Halliards Fore Royal Halliards Main Royal Halliards Mizen Royal Halliards Spanker Peak Halliards 5 6 7 8 9 10 11 12 Mizen Royal Yard 13 14 Spanker Gaff Spanker Boom 15 16 17 18 Fore Lifts Main Li;ts Cross-jack Lifts Fore Topsail Lifts 19 20 30 31 32 _ 33 34 35 36 Main Topsail Lifts Mizen Topsail Lifts 37 38 42 43 44 45 46 47 Main Royal Braces Fore Topsail Halliards Main Topsail Halliards Halliards 48 Spanker Throat Halliards 49 Spanker Sheet Spanker Vangs 50 51 52 Spanker Topping Lift Ensign Halliards Febuary 1929 The Model Yachtsman. 164 A-CLASS DESIGN By W. a << cae Be ee = —< ms onet . ‘ 2 > «4 : ‘ , e’s ~ — eee De os a) Ctl t ltt eb 2 to | e Tae —_ he, i a ae an Our Design. This month we have pleasure in giving our readers an A-class design from the board of Mr. W. J. Daniels. | We need hardly inform our readers that anyone building to these lines will be certain of a very fast and well-balanced model. It is very interesting to compare her lines with those of ‘‘ Patsy,” which we published last month. Mr. Daniels’ design is essentially British practice, as ** Patsy” is American. The lines of Mr. Feltwell’s ** Frolic ” which we published in our first and second numbers also make interesting comparison. The dimensions of this Daniels design are: 1.0.a+ 72°75”; l.w.l 45°5”; draught 10°525”; waterlines spaced 1” apart; buttocks spaced 1:25” apart ; sections spaced 2°725’.. The S.A. is 1890 sq. ins. Her displacement is 37]bs., and the lead keel weighs 27 lbs. Enlarged Body Plan together with Sail Plan will appear in our March Nnmber. Readers desiring Full Size Plans of this boat can obtain same from Mr. Daniels (see Advertisement columns) for 21s. post free. We are aware that numberless boats, particularly to Mr. A. W. Littlejohn’s pretty little 36” l.o.a. design, have been built, but we have not yet received any reports from readers who have built from our published plans. We should be glad to hear from builders with photos of the craft they have constructed. The Model Yachtsman. Febuary 1929 (One-Sixth Full 165: Size). DANIELS. _—_ aes | – _— = » VA / J ae ats —— eee —= —— pines age ae oe oan | Y i| | Model \ PAGEL ee a Yacht Model Clockwork Locomotives. Photos. During the year THE MODEL YACHTSMAN has been in existence, we have published the photos of a considerable number of model yachts. Owners whose boats have been published might care to have the blocks from which these have been printed. These would be very nice for next year’s Christmas Cards, for use on Club Programmes, etc. We have, therefore, decided to give owners, whose boats we have published, the opportunity to acquire these blocks at a very reasonable figure, far below their original cost, and we will send same post free for 2s. 6d. PARTICULARS OF OUR DESIGNING COMPETITION WILL APPEAR OUR MARCH NUMBER. IN Readers, who have brought their sons up so badly that they prefer model trains to sailing boats, should take their misguided off-spring to Messrs. Walkers, 61, Baker Street, London, W.1. (See Advertise- ment). This firm makes a speciality of a small gauge clockwork loco. This engine has a powerful motor which pulls the most astonishing weights. By an ingenious method, a govenor similar to that of a gramophone is used, and speed can be regulated to. a nicety. They reverse and climb steep gradients. This firm also keep an excellent stock of model yachts, particularly in the smaller sizes. 166 The Model Yachtsman. _ IS THE IDEAL RATING eats RULE February 1929 POSSIBLE ? By J. G. FELTWELL. Years ago when there were no rating rules or restrictions, and handicaps were unknown, yacht racing resolved itself mainly into a matter of size and the largest yachts generally won. Naturally this was very nice for owners of big vessels and very ‘dull for owners of small craft. In order to make competition closer and more interesting, handicaps were introduced. Some of these were based on performance and some on various systems of measurement. It is not my intention to trace the history of yacht racing, or discuss at length the various types of yacht produced under obsolete measurement formule. Early classification was, however, by various rules giving the measurement by tonnage, and the next advance was to form classes of yachts having the same tonnage, and thus class racing was evolved. At one of the early international yachting conferences Professor Froude put forward the following definition :— “The legitimate purpose of a Rating Rule is simply to measure size ; in order that the question of size being eliminated, the yachts that win shall be the fastest for their size; and that the model evolved under these conditions of competition shall~ be the speediest model.” Professor Froude called this definition a “‘ Primary or Ideal Principle,” and it is certainly a very excellent definition of a Rating Rule, which will be heartily endorsed by those who hold that it is no part of the proper function of a Rating Rule to mould the type of boat produced under it. Experience has, however, shown that yachts evolved under a rule frequently owe their success to ‘“‘measurement cheating’’ rather than genuine speed qualities. This might lead one to accept the sweeping conclusion that, as the character of the best measurement cheating yacht is solely dependent on the measurement rule, the very idea of the speediest model is meaningless, except with reference to that particular rule. If we accept this view, a Rating Rule must be regarded solely as a means of carrying on yacht racing. We might, however, be tempted to carry the matter a little further and ask whether in order to get fair competition under all conditions of weather it is necessary to some extent for a rating rule to define the type of boat produced ? Moreover, it is incumbent to protect the interests of owners by framing the rule in such a manner that a desirable type of vessel is evolved which is not liable to be rapidly outbuilt. This consideration is very neces- sary for the welfare of the sport as far as full-size yachts are concerned, and should also apply to models. Professor Froude put forward a definition to cover this which he styled an “ Alternative Principle ” as follows :— “A Rating Rule is a serviceable contrivance by means of which class racing can be carried on ;_ it should be convenient in working and should foster a desirable type of yacht.” = Now there are only three methods by which these objects can possibly be attained. The Rating Rule can consist of a set of Restrictions, or of a Measure- ment Formula, or of a Measurement Formula used in conjunction with a set of Restrictions. A careful analysis of these three methods and the resultant boats may help in the consideration of the possibility of an ideal rating rule. I will, therefore, deal with each of these three methods in turn, enumerating the conclusions I have drawn in each case. Restricted Classes. The most restricted class of all is, of course, a One-Design Class. Here all the boats are built from the same design to the same specification, and are as far as possible exactly alike. They are frequently ordered in batches from the same builders at the same time, and a great saving of expense is thereby effected. They are usually designed especially to suit the water, and in many cases have provided excellent sport for a number of years. | The type naturally varies with the locality. In Scotland deep draught and plenty of weight is favoured. In the Thames Estuary centreboard craft of a powerful type are preferred owing to the necessity of taking the mud between tides. On the Norfolk Broads the type selected is a short keel boat of a maximum of 3 feet draught with a balanced rudder, whilst the Solent boats are powerful little craft suitable for the short seas they have to meet. The best known One-Design Class in the world is the American “‘Star” Class. This is a Sharpie type of boat and very popular in the States, where it has attained the dignity of a yearly National Championship. In this country the most numerous One-Design Class is the Yare and Bure. These boats are a charming model from the design of Mr. Ernest Woods, of Cantley, Norfolk, and have a sailplan by the late Mr. Linton Hope. The ideal of a British National One-Design Class has never been realised, however, owing to the different types needed to suit the varying conditions in different parts of the British Isles. The main objection to a One-Design Class is that it only possesses a local interest, and this centres in the men who sail them rather than in the boats themselves. Thus: L+ Rating. = But it takes a discount to induce some people to buy, and others, like John Gilpin, like to carry weight. So a discount in the form of displacement in cubic inches at 64 lbs. to the cubic foot suggests itself, and the result is : vS 2 Perhaps it is an abstract problem, suitable for off-season discussion, or it might be of practical use in rating a mixed fleet of At first glance it might seem that a model of the rater type would be encouraged, but, on consideration, it appears that the method of finding the allimportant sailing length would be an effective check on the skimming dish type of hull which owes its success to length-cheating overhangs. “‘ Kappa’s” rule is as simple as a rule can be (measurement of sailing length being essential in any formula dealing with yachts), and it is surprising that it has not attracted more attention. L+ _ The linear inch for length, the square root for sail area, and the cube root for weight, are used directly; and the rule appears to be logical and free from personal predilection. vyS 9 fins as defined by the M.Y.A., etc., are understood, and a maximum draught would be determined for each class—say eleven inches for one-metre yachts. vD = 39°37 ins. In both rules the usual provisions anent sheer line, tumble home, notches and hollows in the hull, bulb A-class, 12 metres, and nondescripts. The L.S.D. rule was devised by an amateur who can hardly tell a planimeter from a metacentre ; it was invented half in jest and wholly in earnest, and it has provoked 2 lot of quiet fun. One expert says that the rule is rational in form as it places a bar on big boats, for the time soon comes when a big boat has no sail. Similarly a boat with clouds of canvas may be allowed no length. Another authority considers it superior to the L.Y.R.U., Universal, and Y.M. rules. A third expert opines that the D in the formula is redundant, and the proposal an attempt to make rating rules in general, and the “* Kappa ”’ rule in particular, look ridiculous. The authorities cannot all be right. Perhaps you, Sir, or one of your gentle and courteous readers, will give a reasoned opinion on both rules. I am, etce., HOGOMANAY. 172 ~The Model SMALL CLASSES AND HANDICAPS. Sir, ‘“* Yardstick ’’ in your November issue has made my little suggestion for a Rating Rule look so foolish that I feel I must put up some defence. The formula was actual S.A. or (L.O.A. x P—Q)?, whichever was greater. The values suggested for the constants P and Q, namely 0.72 and 0.5 were purely tentative. They happen to fit some decent types (e.g., A-class and wee 6-m’s.), and so I hoped that they would suit any healthy sort of boat and penalise extreme types of skimming-dish or leadmine which are the varieties one usually meets. Such a “horrible contraption” as ‘ Yardstick” visualises has probably never been built, and never would be, except to beat a rule. The chief purpose of my rule was not so much to build to as to furnish a basis on which to handicap boats of miscellaneous types and sizes, whether purchased or home-made, whose owners happened to meet at the pondside. They may, of course, find out by trials which is the faster and arrive at a fair handicap, but the loser will always maintain that the winner has the bigger boat or carries more sail. Yachtsman. February 1929 factor Q in my formula might be reduced to something near zero, whilst if overhangs are to be dispensed with P might be increased. Obviously freak boats could be built to such a rule as it would not compel them to be a healthy type as the I-Y.R.U. formula does. | But would an unhealthy freak be successful except in her own weather ? In conclusion may I say that I am strongly in favour of any movement towards a decent class of small model for the benefit of youngsters, novices, and those who have not the convenience of a boathouse and have to carry their models a considerable distance to the water every time they want to sail. There must be a very large number indeed in this last category. 1am inclined to think from personal experience that 36” l.o.a. is too large, as it means at least 8 lbs. displacement, which is no pleasure for a man to carry far, and a distressing burden for a youngster. I would strongly recommend 30” or thereabouts with 5 lbs. displacement. A boat of this size is a vastly easier affair to carry and is yet large enough to behave satisfactorily. By the way let anyone framing a rule for such boats remember that only a very expert builder will get more than 3 lbs. of lead on a 5 Ibs. displacement. With a simple and universal formula and a time scale of handicaps, they could start racing right away and the winner could confidently claim to be the better. Yours faithfully, G. B. LEE (Major). Aldershot. As a rule to build to I am not very hopeful of it after Mr. H. B. Tucker’s remarks in his I.M.Y.R.A. Notes in the November issue of THE MODEL YACHTSMAN that a simple rule leaves too many loopholes to produce a satisfactory type of yacht. My rule would amount to nothing more or less than a maximum limit to l.o.a. and s.a. What those limits should be is no doubt very much a matter of opinion. If smaller boats are to make up for lack of size by greater draught or displacement, than if they were scaled down from a larger model, the Letters from Capt. D. B. C. Piggott, Ishmalia, and C. J. Nelson, Brockton, Mass., are unavoidably held over til] next month, a TIMAN All contributions and Editorial communications should be addressed to The Editor, and must contain name and address of sender. \Yhen a nom de plume is adopted, the correct name and address must be enclosed for our satisfactions. Contribution for publication must reach us not later than 10th of month previous. All advertisements must be addressed to The Advertisement Editor, and should reach him by 10th month previous to publication. All orders for the Magazine should be accom- panied by remittance and should be addressed to The Publishing Department. per annum, post America 1.60 dols. free Yearly subscription, rate 6/6 in the U.K. and Empire. All Cheques and P.O.’s should be crossed and made payable to the Cashier. In order to save time, all communications should be clearly marked in the corner with the name of Department and addressed: THE MODEL YACHTSMAN, GOLDEN HOUSE, GT. PULTENEY STREET, LONDON, W.1. Please mention the “Model Yachtsman” in replying to Advertisements. Printed for the Proprietors by H. G. Stone, Wymondham, Norfolk, and published by E. E. Marshall, Gt. Pulteney St., London, W.1. — Gol February 1929 The Model Yachtsman. The Service that. 4 = SAILS Counts! CHAS. Why not have YOUR Fitting Out done by a Practial Model Yachtsman ? DROWN 8, Ullswater Road, WEST NORWOOD, S.E.27 Everything for the Model Yacht made to order. Specialises in SAILS only. Send Stamp for Price List. Best quality UNION SILK obtainable, in Three Grades, viz: VV. H. Bauer’s No. 1. Model Yacht Fit-out and Repair Service, Recommended for Class Models. No. 2. 18-Footers and 10-Raters, No. 3. Spinnakers and Models up to 40 inches. 33, Moscow Road, LONDON, W.2. Scientifically ene : Park 4233 J = essential ‘ ‘Model Yachtsman’’s’ Library | 6/3 ,, 1/9 ,, cut to Sails are success. = OLD CLIPPER SHIPS (Norman L. Skene). ae B Original Pictures Elements of Yacht Design, 16/- post free. Model Sailing Yachts… and All Grades 1/3 per 100 square ins. (over King’s Head). Barlow’s Tables, A faithfully portrayed (Percival Marshall). in WATER COLOR The above are obtainable from the Publishing Department, “Model Yachtsman,” F= e . A perfeet Picture of Golden House, Great Pulteney Street, W.1. y, any Ship e (period 1889 to 1910), guaranteed. Official Publications. J. FE. COOPER, M.Y.A. Constitution and Sailing Rules … M.Y.A. Rating Rules sas 1/- I.M.Y.R.A. Constitution and Sailing Rules 6d. 26, I.M.Y.R.A. Rating Rules… 6d. WANSTEAD, rs on sak ae 9d. Postage on any of above 14d. Terms C. N. FORGE, Hon. Secretary, M.Y.A., 151, Lichfield Grove, = London, N.3. Warren Road, E.II Moderate. Phone: Wanstead 3131 y, . y, February 1929 The Model Yachtsman. 61 WALKERS 61 We have in Stock: YACHT BRAINE STEAM MODELS STEERING GEORGE GEAR and BRAINE FITTINGS TUGS HISTORICAL SPEED by MODELS BOATS We have on Show the following Models which are perfect examples of Native Craftsmanship : VENETIAN GONDOLA MALTESE FREGATINA MALTESE DYHAISAI Yacht Models at following Prices: 5/6, 8/6, 10/6, 14/6, 17/6 & 35/- (“K” Boats). 45/- & 84/- (Petersen Boats). £8 & £12 (Braine Boats). 61, Baker Street, London, W.1 Tel.: AMBASSADOR 8836.