Model Yachting News: Issue 17 – June 1984

5 Crofton Court Cypress Road South Norwood, SE25 4BB model yachting Tel: 01-653 7909 newsletter COVER PIC An A class boat,”Laila”, to the well known lines of Kai Ipsen’s original Fashination shown on open water in Copenhagen harbour. Fxamples of this design will no doubt appear at what is rumoured to be the last Gosport championship before the area ia redeveloped. PHOTOS For the Newsletter we like to receive good quality photos slide negatives. or . Anything different, fittings, will be acknowledged and library of photos (black and white only) held sails, boats sailing, unusual returned where requested. These for future use and will not shots of people etc. are also useful be returned unless all for our specifically requested. ADVERTS Vie accept advertisements to finance hobby to shop from known bona-fide model the Newsletter by find never out where this means to get those and in awkwards yacht turn bits we fitting makers hope to and pieces help that who assist us people the local please contact Subscriptions 1984/85 model for the Editor the NFW year subscription run to discuss from is: JUNE direct 1984 to (01-653 MARCH £5.00 post paid U.K. £5.00 post paid EUROPE sails or 7909). 1985. £6.00 post paid ALL OTHER COUNTRIES. “We have full will supply ordered the stocks. If you wish to place an advertisement to sell quantity production of hulls, fittings, new to with sets of these a new at 1983/84 covies plus a few 1982/83 the to: rate of £3.00 per set (while subscription. Make cheques payable Address reduced copies to: Model Yachting Newsletter 5 Crofton Court, Cypress South London Road, Norwood Sf25 4BB, England still stocks in stock, last) if and chairman’s column M.Y.A. COUNCIL MEETING 12th MAY The Chairmen of the two sub-committees appointed at the January meeting to revise the Constitution and review entry procedures for M.Y.A. events, presented their findings, which were considered in detail by Council and occupied their attention for the major part of the meeting. Various new principles affecting the Constitution and the future conduct of the Association’s affairs were agreed and will be incorporated in a draft to be produced in time to be finally ratified at the September meeting for presentation to the A.G.M. Similarly, the agreed new proposals for Championship entry procedures will be collated in the form of amendments to the current Competition Rules, again in time for the September meeting and presentation to the A.G.M. The need for these new procedures is emphasised by the fact that there were 29 irregularities in a total of 58 entries for this year’s RM Championship. MEMBERSHIP The Treasurer reported that the current year, 52 clubs had so far paid their subscriptions for leaving five clubs still to pay. following the demise of the It is regretted that, Southampton club reported in March, have ceased to exist – Cleethorpes and East Yorkshire. However, two more clubs two new clubs have been elected:- Oxford Model Boat Club. Secretary: David Swain, 31, OX2 7AY. Tel: 0865 59548. Lakeside Model Boat Club. Beechcroft Road, Oxford, Secretary: Ron F. Boxall, 83, Cleveland Road, Chichester, West Sussex, PO19 2HF. Analysis of a total club membership of 824 so far this year shows a slight decrease of 40 members, compared with 1983 but, of course, as clubs are now obliged to pay for all their members, the income has increased. AMENDMENTS TO ADDRESS LIST Changes of Secretary:- Medway Marine Model Society -— R.H.F. Lewis, 282, Miers Court Road, Rainham, Gillingham, Kent, MES 8JwW. Warrington M.Y.C. — D. Bailey, 63, Reaper Close, Great Sanky, Lancs., WA5 1DY. Tel: 0925 415098. Y.M.6m.0.A. — P. Heath, Warrington, 14, Windsor Street, Chertsey Surrey. FIXTURES/ADDRESS LIST — YEAR BOOK It was agreed that in future the Fixtures/Address List booklet will be enlarged to take the form of a Year Book, contained in the incorporating all the Information Pamphlet. This will go often-heard question as to what the M.Y.A. information at present still further to answer the does for its members. One of the Association’s aims is to promote model yachting and this is what we are always trying to do. The possibility of producing a suitable M.Y.A. poster is being investigated. 1985 CHAMPIONSHIPS Provisional venues and dates so “A” Class Fleetwood 10r To be 2) 6m 36r ” ” i” arranged Fleetwood Bournville Birkenhead far agreed are as follows:- 4/9 August. 4/6 May 28/29 Sept. 24/26 August. RA Class Poole Rios Woodspring “ Date to be fixed. ” RM ” Fleetwood 25/27 May. R36r ” Birmingham 22/23 June. Champions Cup – Chelmsford 19/20 Oct. 1985 CHAMPIONSHIPS (cont.) Little Portugal Cup – Birmingham 21 September. Team Championships -— “A” Birmingham 27/28 April. TM” to be run simultaneously with the National Championship. Model Maker Trophy ) <0 tenons, Mickey Finn Championship ) R/C RACING RULES It has come to light that, edition of the in amending our rules to comply with the 1981-84 International Yacht Racing Union rules, an amendment to IYRU Appendix 3 - Alternative Penalties for infringement of a Rule of Part 1V — was overlooked. The rules in question (1.1 and 1.2) determine when a yacht must make her 720° turns:1.1 When the yacht infringed against accordance with rule 68, yacht intends to protest, she shall act in (Protests by Yachts), and hail the infringing immediately. 1.2 With or without such notification, infringed a rule of Part 1V, shall a yacht which realises that she has acknowledge her infringement by immediately starting to get clear of other yachts and when well clear, shall forthwith make her turns. While doing so, she shall keep olear of all other yachts until she has completed her turns and is on a proper course for the next mark. However, Council M.Y.A. felt that these rulings need not necessarily be followed in events and an "Acquaint" is being circulated to all clubs which modifies the Appendix 3 ruling and also prohibits the practice of making penalty turns and then protesting. A yacht must do one or the other, not both, although this is permitted in full-size. I.M.Y.R.U. BUSINESS The agenda for the Union's General Meeting at Gosport on 4th August, includes the ratification of a new Constitution, Copies of the draft opportunity to came under formal discussion. Constitution were handed to Council members who, study it, are required to which given the submit a postal vote for its adoption or rejection by the end of June, so that the M.Y.A. representative at the meeting may vote accordingly. Chris Jackson was elected representative and will be nominated the IMYRU Publicity Officer to replace Vic Smeed on his retirement. If the new Constitution is ratified, Roger Stollery would be nominated as a member of the Permanent Committee. Torvald Klem (Norway) is to be invited to be nominated as Vice-Chairman, again subject to the An offer from the Hove & Brighton M.Y.C. adoption of the new Constitution. to permit their lake to be used as the venue for the next World Championship (RM) in June, 1986, was dealt with and it was decided to hold a special meeting of people with experience of World Championships to examine in detail the event, bearing in mind that feasibility of the M.Y.A. hosting the it would require the co-operation of clubs in the Metropolitan & Southern District and possibly in other Districts, to staff it adequately. There are also other possible problems which may need to be resolved, not the least of which is the provision of sufficient parking space for up to a hundred or more restricted space before the competitors, at Hove, officials and spectators which, could be quite a headache. with the very A decision must be made IMYRU General Meeting. Norman Hatfield, Chairman. os MEMBERSHIP Currently, there are 22 countries in membership, including Brazil which has re-joined after an absence of one year. There is a good possibility that Finland may apply for membership this year and contact has also been made with Mexico. CONSTITUTION Copies of the draft of the new Constitution have been circulated to all member countries for ratification at the General Meeting at Gosport on 4th August. RACING RULES APPENDIX The final draft of the Appendix to the IYRU Racing Rules is due to receive approval of the Racing Rules Committee by the end of June. The President of the International Yacht Racing Union, Beppe Croce, has given permission for the Appendix to be published as "Appendix 11" in the 1985 edition of the IYRU rules. This is an important advance for international model yachting and the Union and gives us the recognition we have long been seeking. Much of the credit for producing the original draft of the Appendix for last year's E.R.M.C. must go to Jan Dejmo and the Svenska M.S.F., who have also published copies of an R.C. Yacht Racing System for the IMYRU which was used at the E.R.M.C., worked well and was approved by competing skippers. The System is printed on four sides of semi-stiff card and the cost has been borne entirely by the S.M.S.F., for which IMYRU is most grateful. One copy will be sent to each member country and further copies are available if required. WORLD CHAMPIONSHIP Confirmation of an offer to host the next World Championship at an English venue in June, 1986 is still awaited from the M.Y.A. It is hoped that, if the M.Y.A. does not proceed, another country or countries will apply. "A" CLASS RATING RULES The result of the postal voting on the amendments to the Fore Triangle measurement rules in Sections C, D and E is that the amendments have been passed and are therefore immediately effective:— Section C, Rule 11 -— Delete the title and entire rule and substitute: PORE TRIANGLE The fore triangle is bounded by the mast, the deck and the line between the measurement marks on the mast and deck, the measurement mark on the mast shall be no higher than 162.5cem. (64 inches) above the deck. Section C, Rule 13 — Add new sentence to existing Rule 13 after "when held ina central position" and before "A boom is allowed ..... of the mast." The sentence to read: The luff of the sail and any supporting spar shall not project forward of the line defining the front edge of the fore triangle. Section D, Rule 2 — Delete rules 'I' and 'J' and substitute: I. Height, measured from the deck up the fore side of the mast to the lower edge of the measurement mark defining the top of the fore triangle. J. Base, measured from the fore side of the mast to the forward edge of the measurement mark defining the front edge of the fore triangle. Section E — Under title "Fore Triangle", delete the entire rule and substitute: The forward end of the base of the fore triangle shall be marked on the deck. Should the mast be moved, the base shall be adjusted so that the measured J is not exceeded. The limits of the movement of the base shall be marked on the deck. NAVIGA CHAMPIONSHIPS An invitation was received from Naviga for the Chairman to attend their Championships in Vienna from 22nd/29th July, 1984, with all expenses paid, including travel. The stated object of the invitation was to enable contact to be made with members of the Naviga Praesidium and to enter into discussions about mutual involvement in International events. After careful consideration of all the factors involved, it was agreed by the Executive Board that, in view of the important basic differences between the Constitutions and Rules of the IMYRU and Naviga, (the IMYRU Constitution does not permit discrimination on the grounds of race, religion or political affiliation), the Union would have nothing to offer and therefore there would be no point in the Chairman accepting the invitation. Norman Hatfield, Chairman, Executive Board. EXCITING NEW CLEVER COMPUTER SAILBOAT RACING GAME This is NOT just another computer game, but is a very valuable aid to practical yacht racing techniques and training. You can compete against the computer yacht which has been programmed by experts to sail around an Olympic type course to the best advantage. against the computer, controlled, against against the another opponent or computer You can either even two yachts, compete separately itself. Although some knowledge of sailing and particularly yacht racing is an obvious advantage a novice can soon pickup the simple The instructions. idea is to sail of a ideas of genuine yacht racing by following triangle, round an Olympic type course which from the starting line consists an up and down leg, another triangle and a and finally a leg against the wind to the finish. second up and down leg Each game takes approximately 10 minutes. The WAKE of each yacht is shown as a moving white line on the screen make it easier to follow its progress as a curve). longer vice versa. a The the line (don't becomes forget the in order to the WAKE can sometimes faster the boat is If the wake reduces to virtually nothing you will stop. show up travelling and see you have come to The skill is to keep your yacht travelling at the best possible speed with the given direction of the wind. When tacking against the wind should you sail too close to it the line will shorten and the yacht slows down exactly as it does on the water ! The direction of the wind RANDOM, again as is shown by a white arrow and its direction changes at it does under natural conditions. These random changes are purposely NOT programmed. When one yacht can out-manoeuvre the other by causing apponent it positively slows it down and you will see a truly remarkable programming achievement. its wake line begin fall to on if a yacht touches it the word 'CLANG' its shorten, In this way a skilful helmsman can fact beat the computer or other competitor. When yachts are rounding a mark its wind shadow to in comes up on the screen and the boat is penalised under the yacht racing rules by being obliged to REROUND comes For the mark before up and the yacht at proceeding fault further details contact: must further. either do John Caig JCS ZX Software, 304 Fir Tree If two two yachts complete collide circles or Current price £8.95 Road, Epsom Downs, KT17 3NW Tel. 073-735 the word 2645 'CRUNCH' retire. include P & P, U.K. letters. I read in issue no.16 an article by Adrian Brewer about his would offer the now, the following comments about the Twister's 9.85 lbs. In fact, with radio and rig, States, lbs, lbs of to form another class, lead on a draft of about particularly on the called the i.e. changing of ballast during a regatta 3UR, no batten, or 3 Finally someone length of complete 16". is permitted, 36" maximum. is going to try what foot Unrestricted. and in fact encouraged. suggest seriously restrictions, instant, England, which would result, International for this class. the In the meantime, anyone wishing to build the its big attraction is the ease of I would draft now, in an in transport. 36/600 version of Twister should realize is a maximum roach and headboard limit for this class. R.B. communicate to you the drawing of my published in the magazine. In actual l-metre yacht, fact the (Bob) the photos shape of the hull of a very old l-metre model yacht designed by R. The Now at It would be different from any other class and I beam and since you have no sail area limit class. course class to play with. consider dropping Model Yachting, that there of 36" is and the total rule would then I have been suggesting for years really experimental in There (UR meaning Unrestricted). last the designer will have a you, The and the The very size of the boat limits to some extent how big a rig you can run. that Light- East Coast of the or roach restrictions, a proposal this year to eliminate the sail area limit, require an overall and a headboard limit of with about 54lbs of lead. some of the members, rules were as per the old 36/600, only and For about two years the average 36/600 weighs in at about 84lbs, and carries about 5 This rule change caused 24", design, This has resulted in boats considerably lighter than weight boats will weigh under 8 United 36/600 version. 36/600 class has had a roach restriction of 4" for both the main and jib. "Twister" Ramette fin and rudder have been completely modified. some STERNE of which have been is similar to that 35 years ado. Inspiration for the rigging has been taken from Roger Stollery's turning masts. I use a 2 channel radio and the balanced jib allows the use of a Robbe (Futuba) SVS 100 servo with a lever to haul the sheets taut. The radio equipment is set between sections The hull wooden 5 and 6. is made of a 0.3mm tick sheet of epoxy glass (the deck being 0.2mm) ona structure. This yacht has been made with the aim of great ease of transport, serviceability and proves to be extremely pleasant. MICHEL LAHURE Woodspring Club is currently overhauling its measuring equipment for A-Class yachts. This gave rise to thethought that the procedures employed to establish waterline length, beam and quarter-beam length are long-winded, your readers, particularly club measurers, difficult and error-prone. May I ask to describe their own methods and equipment. Perhaps we might all benefit from pooling our ideas, and we may establish more uniform and consistent results. Our existing waterline measurement method involves positioning two metal blades at the water surface, in contact with the hull. taken edge at bow and is stern, both sides, A reference line and an average is then pencilled on the is calculated. The procedure repeated twice more to establish consistency. The boat is then transferred to a wooden waterline length and beam. at only two points. the frame. dented by the hull The difficulty here Boats do not all sharp bow of is supported a is is that adjustable to the required the boat is to be supported rest easily at the correct attitude when put Also the front frame member, the frame which heavy boat. which is also a measuirng point, I would like to devise a system is easily in which independently of the measuring equipment. J.C. OSBORN in cont’?d A couple of RA lines enclosed for your information. "Foxy Loxy" was RA Champ in 1978. Norm Skeen has recently bought this boat and returned can still give a good account of herself. "Trident" it to racing condition and she is a fairly new boat and is based on "Foxy Loxy" and "Sunspot" which I drew up for Airborne magazine. The successor of "Foxy Loxy" is a round bilge version called "Wizzle Wozzle" boat has been Australian Champion for the last 3 years, printed a photo of her (the boat) the 45lb as the caption says. sheets of paper) No.12. Designed weight I am doing fibre-glass hulls of 6 in M.Y.N. is Pat's boat 39lb on a is 55" her and the drawings I have were used only to build the plug. will draw up an intelligent sailed by Pat Cox. You just over 40lb, not L.W.L. (bits and pieces on about However if set of lines as time permits. and this you are interested (Now done.) She has proved to be an excellent boat and there is nothing here at the moment which looks like proving a threat. Pat's boat is just too good! His sails and rig are excellent andhis ability as a skipper and tactician are first class. accounts tor the boat's success, but other boats to the design also perform well the hands of skippers whose ability varies My design ended up 1,3,4,5, Eric also On the in considerably. and 6 at the Nationals which is very pleasing lots of Wizzle Wozzles too). design boat, This of course (selling Airborne lists 3rd place Eric Fisher as sailing an own but actually it was another of my multi-chine designs called "Ho'Ho". sailed this boat into 3rd place last year. "Trident" drawing which I sent you, the main boom is drawn incorrectly. This was noted by Graham Bantock on another drawing and on checking my recent designs found that becomes a "Trident" was drawn the same way. I Dimensions do not vary but the boom now fully bent boom to accommodate the round foot of the main. Sorry that the error slipped through-I have now amended the offending drawings. ADRIAN BREWER Dutch Model Yachting Organization The Dutch national authority, (Nemozo) Nemozo, an exhibition for all kinds of water was 20 x a blow of 60 metres. The wind was invited by the organisers of the HISWA, sports in Amsterdam, demonstrations at the HISWA theatre. about at the HISWA exhibition to participate These demostrations were held furnished by four in the in a pool of large generators, which gave 1-2 Beaufort. The exhibition was held from 16 to 25 March and each day Nemozo was present pool for hald an hour with several Marbleheads, submarine(!), a large two-master, Especially the trimaran, high speed, a an A-class yatch, in the a trimaran, a few scale models and...a toy boat. which could demonstrate sensational capsizings and a very was very much loved by the public. Furthermore the public was very surprised to see the variety and possibilities of model yachting. JENNY HERFST, The local from in scene of model yachting three clubs SW country The main breezes in and around enjoy local or most appealing class from the SW averaging several councils freshwater are quite of Sydney. the past two is with the that we have two lakes RA, in further some clubs fifty members operating getting off the ground or Ken possibly due each afternoon. to RPM are around to our should Mitchell I the been very close, prevailing summer losing popularity Perth metropolitan area say the most competitive of i.e. Sydney NSW and built one point in 1983 and design, five years, & is the by Alan Fish also point "ub 8 where involvement. Alan has been the National champion for the past have our EC12 and one Mickey Finn. and co-operative designed by a R10R, 15-18 knot several The most common R10R design, "Jelly Baby" Perth is areas. for the moment and we have We in WA Holland in although 1984. Bell WAMYA Secretary I “THREE TIMES A LADY" If you are looking for a model to give you a refreshing change, interest, then have you considered a trimaran? if you apply a knowledge of monohull use of the "extra" some excitement and To design one is not that difficult design and adapt your thinking a little, making hulls. The yacht can be balanced by careful positioning of the centre of buoyancy of the outer hulls relative to the overall centre of gravity and the position of the centre of effort of the rig relative to the centre of lateral resistance for the fin and rudder. An example of what can be done is a model which more or less as it came off the drawing board, The dimensions of are and the model it carried 1250 sq.ins. The hulls are round bilged, or floats, well rounded, is the mast. of 67" OA, I have been sailing for two years, with much pleasure and satisfaction. 60"LWL and 46" beam. Its weight is 11 lbs sail. the centre hull fairly flat floored and the outer hulls, connected by a single detachable broad cross beam on which The unweighted fin is carried well forward and a large rudder provides balance and good manoeuvrability. A moderate aspect ratio masthead rig is carried. The floats are carried inclined outwards so that they are upright when fully depressed and their displacement is such that they can be driven underwater by the maximum heeling moment rather than cause the main hull to lift clear of the water. Other design features include fine reflexed water-lines at the bows which give very clean entry with little bow wave, there is little heeling. the crossbeam makes a As the model was good flare for buoyancy and short overhangs, The fin slots into the hull intended to be a “one off" and as structural weight need not be an is glass fibre abd balsa sandwich for the hulls sheathed balsa spar and rib type cross beam. made by applying sheet and strip balsa to shadows as outside and in with glass cloth and cloth tissue. off these hulls for other builders.) us slower than fitting out a stiffness, during from below and the centre of lifting handle. absolute minimum the construction and glass I shall The hulls can be quickly in strip planking then sheathing (Moulds are presently being taken Although the sandwich method of construction "glass only" completely without storage; as hull it does produce hulls with remarkable flex and panting and not prone to distortion or creep continue to use it in future for these reasons. Two channel radio is fitted as usual but the winch uses a monoperm pile unit to provide plenty of pull the high forces for control of the involved on a trimaran. sails via sheet horses and to cope with (The model's peak heeling moment to that of a 10 Rater of more than twice the weight.) A devie based on tile switches excessive heel, them in to the making it is equal - is fitted to control the winch in the event of east the sails off until heeling reduces and then sheet initial position again. This enables the model to cope with gusty conditions often encountered on sailing waters. On the water the model Down-wind it is directionally very stable and precise. the wind sails fast and points well, progress. As strengthens out-pacing 10 Rater and A boats. it moves Full fast responding quickly to the helm. In light airs it makes easy and cleanly through the water, sail can be carried in an 18kt wind when speed and accelaration become dramatic with exciting moments. I (force 5) certainly enjoy this type of model and I hope in future others will also. C. A photo of (MM1355 this Price boat £4.85) appeared in Issue no. 16. Plans available STANLEY through M.A.P. Ltd. LOST LOVE Design for a radio-controlled Marblehead yacht The boat started out as line and section drawings during the winter of 81/82, lot of reading in Skeene's Elements of Yacht Design. published, and I was act an go increase in through waves the wind strength. rather than his them, body for the same reason, sea after coming down although most I figured the a sharp edge nose had to the to be front of of the righting moment to achieve a large areas of hull hitting the comes from the reasonable displacement, deep about lead keel. 6.5kg. The feel But primarily she was designed for beating towards the wind, I After several attempts the calculations were as the battle is lost or won on a normal olympic The after- but the theory seems to work in this case. I wanted them, sailplan was made with a in the jib. larger all very theoretical, coefficient came out at 0.50. in area than normal, with the maximum free area of roach on the with 45% of the total light wind. So the parallel second version at the top and narrower at the bottom. is at about 40% of rudder is fatter, jib, longer slot between jib as close to the main as possible without fouling the mast. fin was originally made narrow, thickness lateral centre of More even distribution of sail when on a run giving less force to correct with the rudder, jib and main, jib Prismatic that's course. buoyancy moved 0.4cm when the hull was heeled from 0° to 25°. very the under water to give a bit of power when heeled to a quite where The fine to hoping to leave enough to obtain reasonable planing and surfacing capabilities. area slim and just flattened and narrowed down to leave as little disturbance to the water as possible, The My emphasis from a wave. volume was also needed body is its vices. no more moving of masts to counter- curved to avoid the smash of Mid-sections are basically elliptical, narrow hull, The article on Kisutch had been fed up with my ageing Challenger with all was to get a boat which was balanced when heeling, after a section is and thin, of about and had a tendency to stall the same wetted area, but broader And the stalling tendency is gone. length, relatively speaking, with a and max. small, in Maximum rounded front edge. The thickness at 30% to avoid early stalling. Plug, form and first hull were made in spring 82, Graham Bantock made the sails, the boat won our local club championships on its first day on the water. the summer I came third in the Dunkirk World Championships, and Later in my first race outside Norway and Sweden. During winter 1982/83 a new boat was made from the out. Small alterations were made to the sails, same mould, and the new keel tried but basically the touches were applied the week before the British Championships, 1983 was a good season, I only lost one race, European Championships, with me and my new boat first, same boat. which Finishing I won. the Nordic championships. Best was the and Svein Andresen taking second place with the old. Construction is relatively orthodox, They are relatively light built, ends of fibre, the hull are light, with kevlar/carbon fibre and epoxy/polyester. but reinforced transom is wafer the rudder balsa/glass fibre. straightforward, so as not to deform or twist. thin. The keel is built of The balsa/carbon Fittings are kept deliberately simple and so as to break and unsettle less the trim of the sails, physically or mentally. Masts are carbon fibre, expensive but very stiff and light. suit or working suit the stiffness is needed to keep the withour All losing power in gusts or through twisting in all a fairly conventional boat, Particularly on a tall sails working all the time, sails. old cashioned as the Swedes say, but with new materials used to their best advantage within conservative construction principles. No revolutions, And the name? maybe evolution. Well, it was made mainly during people have better things to do Drawings can be obtained from than measuring the long winter nights when other section areas. Torvald Klem Gyldenlgvesgt Oslo 2, 22B Norway for the sum of £10.00 | ov312s GLXOHdVMI3EZvT WITHCVAOLHRACO 8SANWUETRO7S0 LL, 13ASO71 T3zIins4 a 7 JONES FITTINGS for Radio Controlled & Vane Yachts. .« GUNWHALE EYES - single eye -40p ° double eye -47p pressed type -47p « JIB RACKS - 3", 6" . £1.20 5" 4", £1.25 4 " ’ SHEET HORSES - 8. “yA” £1.20 Class 10R £1.10 M £1.00 £1.00 TWO SHEAVED TRAVELLER - to fit sheethorse NON-FOULING DECK PULLEY with DECK PLATE £1.80 #75p DECK PULLEY MAST STEP i3. 14. M and MAST SLIDE - M 15. 16. "A" -90p 10R and "A" - -80p 36" and and £2.70 10R £2.50 36" -95p 2 EYE FERRULES - state size of spar £1.80 JIB UPHAUL BAND iwth LUGS for SHROUNDS - size required 18. SPINNER TYPE TILLER CONTROLLER with WHEELS 19. JIBBOOM FERRULE - outer end - "A" and 10R 17. M and 20 £1.84 £1551. £1.28 36" £1.05 21. STAINLESS 22. RUDDER BOSS to fit TILLER ARM &" - 3/16" - 1/8" hole £1.05 23. SHROUD RACKS - £2.00 STEEL TILLER ARMS "A" and 10R - pair M and 36" 24. £1.80 - pair GOOSENECK COMPLETE includes mast bands, downhaul rod and boom end cap %" - 5/8" - 4" with or without spinnaker lugs £4.60 26. GOOSENECK PLAIN includes mast band, boom cap and mainsail attachment £2.50 25. 216 KICKING STRAP - solid rod type, adjustable with boom clamp. Fits all goosenecks - size of boom required 28. TURN BUCKLES (rigging screws) 29. 30. MAIN BOOM OUTHAUL - 31. JIBBOOM OUTHAUL 32. 33. 34. 35. £1.90 "A" Class 10R £1.80 M £1.60 adjusts flow in sail,for £2.40 spars # " " “ BOTTOM RUDDER PINTLE - two piece type BACKSTAY OUTRIGGER - class and diameter required (state class) RADIAL JIBBOOM FITTING "A" - 10R - "M" in double deck track SELF TACKING VANE- "A" £2.35 £1.62 £1.55 £6.00 £17.65 £16.50 10R. = M 36. £3.55 37. STAINLESS STEEL VANE PINTLE, 38. STAINLESS STREET VANE 39. deleted LOCKING NUT and BASE £1.20 32p PINTLE 40. 6BA MACHINE BRASS STUDDING 300mm -52p 41. STAINLESS STEEL ROD 1/8" price per foot -24p 42. 3/16" " " " -42p 43. yn " " " -52p please mention MyM when replying to adverts 12 PLATED SCREWS 8 BA x 4" 10- 35p 6 BA x 4" 10 -30p oe 6 BA x 4" 10 -35p r 5 -45p 6 BA x 1" 4 BA x 4" 10 -40p 10 -45p e “iy . D »50p -55p 4 BA x %" 10 -50p be - »60p 4 BA x 1" " * -65p ROUND BOWSERS 4", 51. 5/8", with nuts 10 -55p +40p %" 5la.FLAT BOWSERS 4 ) | 52. HARD ALI. ALLOY TUBE &" 20swg. each 8p each 4p per foot 50p 52a.HARD ALI. ALLOY TUBE 3/8" OD x 20swg. per foot 53. RIGGING WIRE medium and 54. HOOK WIRE ¢ OD x »45p per coil 60p per coil 3/16" 56. TILLER ARM 57. BOOM BAND with SHACKLE £1.00 58. MAST £1.50 59. JENNY STAY £1.50 60. WINCH DRUM £3.50 61. EYE BOLTS 62. MAST JOINER 63. BANTOCK ROTATING GOOSENECK & for rudder tube - per foot for RADIO SPREADER NICKEL 30p £1.40 PLATED WOOD 20p per 10 3/8" 20p per 10 x 3 25p £1.50 3/8" x 2 ALL heavy gauge 60p 55. BRIGHT OD BRASS TUBE - light 40p KICKING STRAP £8.50 SCREWS x 3 ITEMS CHROME PLATED EXCEPT POST & PACKING EXTRA ADJUSTABLE 12, 13, Any excess will 21, be 22p per 22, 10 32 refunded GRP hulls The full range of hulls currently available from E.L. price list takes and is current at ] \ This into account recent increases in labour and raw material costs, lst June boat 4 Jones is listed below. 1984. class designer price SPLASH 1000 R1OR £60.00 HEARTBEAT RM Graham Bantock DELUSION RM/M RM Graham Bantock Chris Dicks 45.00 CHECKMATE R36 Martin Dorey Radio A RA John Lewis B.C.12 EC12 International One Design Hulls are provided with inwhales fitted where required, available to suit the designs. (depending on size) Geoff Draper 55.00 59.50 25.00 150.00 45.00 and fins and rudders are Lead bulbs are extra and cost around £10 each for an RM design. For an exact quotation you are advised to write to Ken Jones at his address, 8 Marline Avenue, Bromborough, Merseyside, as production is limited and demand fluctuates. E.L. JONES, 8 Marline Avenue, Bromborough, Merseyside, L63 OJR. Tel. 051 334 1969 13 M CLASS NATI LS This event has now become in atmosphere like a well-attended district race of a few years ago. A few of the experts who now spend more time radio-sailing, the regular enthusiasts now including a number of younger sailors, and one or two new faces who have made a clear decision to sail vane boats and avoid the hurly-burly of radio racing. The three days at Fleetwood this year were warmer than last year, and provided adequate wind to enable a round to be completed in good time. As your editor managed last place after a series of mishaps including leaving the main boom at home 400 miles away he would be unwise to comment on the other competitors except to say that everyone had a very enjoyable time and are looking forward to next year. RESULTS M Class 1984 National Championships 1. K3367 Alaxis A. Austin Guildford 89 2. K296l1 Vivacity P. Maskell Leeds & Bradford 82 3. K2632 Puddy K. Roberts Birkenhead 78= 4. K3409 R2 D. Latham Fleetwood 78= 5. K3488 Agamemnon P. Sommers Bournville a7 6= K3132 Paddington Bear M. Roberts Birkenhead 69 6= K3276 Heartbeat G. Bantock Chelmsford 69 8. K3445 Don't Axe Me F. Percival Leeds 64 9. K3434 Swiftnik J.W. 10. 11. K2471 K3492 Sir Jasper Wizax of Oz 12. K3499 Fleetwood 60 M. Dicks M.J. Harris Clapham Bournville 10 56 Gonnagitcha D.J. Rose Fleetwood 55 13= K3007 Batty Bat P.L. Witeside Fleetwood 54 13= K3168 Pepe J. Birkenhead 54 15. K1811 Aeolus J. Vice Clapham 52 16. K3451 Shadow v. Bellerson Bournville 51 17= K2972 Audax J. Simpson Fleetwood 49 17= K3490 Miss Fortune N. Archer Bournville 49 19. K2716 Dr. D. Geldard Leeds 47 20. K3498 Jammie L. Reeves Fleetwood 40 Sintax Dodger Brooks & Bradford Sixsmith & Bradford 21= K2897 Blue Peter E. Watkinson Fleetwood 39 21= K3328 Spindrift K. Berry Fleetwood 39 23. K2161 Sula W. Green Bournville 38 24. K2044 Drifter Cc. Jackson Clapham 34 M.Y.A. R36R NATIONAL CHAMPIONSHIP The Guildford Model Yacht Club are hosting the above Championship on their water at Willow Park, Ash, near Guildford on September 45 and 16. At last year's event entry was restricted to skippers who had not previously won any National Championship in any M.Y.A. Class but this year the M.Y.A. have decided that with such a restricted entry it cannot truly be designated a National Championshire so that this year it becomes an Open event. However, to encourage 'novice' entries, the G.!1.Y.C. will provide a separate trophy and prize list for those 'novice' entrants to try and maintain the spirit of last year's event and to encourage entries from those wno might be put off by it being declared an Open event this year. Sailing will commence on the Saturday afternoon to keep the cost down to one night away from home, but caravans will be permitted to park for a longer period. Any further details may be obtained from our Secretary, or myself - Ted Gearey - on Guildford (0483) 14 61631. Bob Pease on Camberley 26234 RESULTS NATIONAL 36R CHAMPIONSHIPS Position Skipper 1 M. Harris 2 V. Bellerson 31 March - 1 APRIL 1984 Club Yacht Bournville Ls no. Total Tsaxshun 1265 92 Three Feet to 1233 86 Score The Wind 3= I. Taylor Southgate Shorty Nuf 1239 76 3= P. Somers Bournville Toccata 1220 76 5 M. Roberts Birkenhead The Phantom Raspberry 1352 vb Realist 1269 70 6 R. Baker a A. Larraman = Little Vulture 1203 67 8 C. Dicks " Wumbit 1259 66 9 G. Bantock Chelmsford Rag Doll 1237 61 10 J. Vice Clapham Vashti 1218 60 11 Mrs. Bournville Cat 1221 59 12= A. Austin Guildford Xasperachun 1105 58 12= N. Archer Bournville Tree Phutt 1266 58 12= J. Gale MYSA Duet 1268 58 15 CG. Harris Bournville Moonlight 1267 56 G. Clapham Blower Somers in the Hat Shadow 16 D. Potter Birkenhead Ariel 234 54 a? A. Taylor Southgate Batman 1147 53 18 M. Dicks Clapham Realistic 1119 50 19 R. Vice Metal 1210 43 20 T. Beacham Springbok 1153 42 21= P. Stollery i Mickey Mouse 1238 36 21= R. Stollery “ A Whiter of Pale 1063 36 ud Guildford Mickey Shade 23 T. Jenkins Birkenhead Wee-Yin 1252 27 24 J. Surrey Clapham Sheba 1121 22 25 A. Gurr MYSA withdrew 26 N. Quispe Clapham withdrew 0.0.D. R.C. Seager KINGFISHER OPEN MARCH 25th The weather on Sunday the and gale warnings being the New Forest water 25th March could only be described as evil. issued at nearby Poole, for the 35 knots a fin snapped. de-sailed, The rain, at unexpected moments, with squalls of up leading forced almost totally under the water, driven by the high winds, one's radio and only the first two skippers managed assembled at Most of the day saw winds of about 15 to 20 knots, suddenly hitting the water being dismasted, intrepid skippers first meeting of the season. pelting rain and highly variable to 31 With storm seemed to get to yachts and in one case into almost every- a trouble-free day, without lesing a race or falling out. Of the 31 entries only 17 skippers still sailed finished without retiring, in a sportsmanlike manner, protests during the whole day. and Dave Waugh, both in their There was a final and I score and similar results and ending up with equal beat the in race Tim Fuller fourth. sixth and that races, so the and Dave Waugh won the meeting. they sailed score and equal race results; against each other, so Dave this time Dave Trippe The other prize winners were Chris Dicks fifth, third skippers for coming to the meeting in such atrocious as everyone knows, we so very rarely have much rain at New Forest! TIM FULLER 15 and Rogert Stollery Roy Burgess seventh. I would like to thank all weather, in Tim Fuller ahd Dave Trippe both losing one race due to the weather Tim seem to remember only two tie for first place between Tony Owens decider was the race they sailed against each other, 3rd and 4th was also a tie, and I was pleased to note that MYA NATIONAL CHAMPIONSHIPS RADIO MARBLEHEAD CLASS NEW FOREST MAY 26-28 It's the spring bank holiday, and it's the RM Nationals, reputation as we're at the New Forest Radio Yacht Club so it must be raining. New Forest lived up to its the wettest sailing venue known to man with three days of almost continuous heavy rain throughout the meeting. Luckily we also had ample wind, working suit or intermediate rig for most skippers most of the time, in reduced rigs during the first two days, Monday afternoon. A fair proportion of skippers the meeting and kept the rain, it throughout: An entry of 58 were boats, suits on the start of given the unpleasantness of changing rigs in they may have had the right contingent, and a very few top with a few decided on a rig at the idea. including a taken through two 58-boat strong and very welcome schedules, foreign a total of 116 races comfortably within the time available by OOD Dave Waugh and his team. was a very clear and convincing win for the holder, Thor Klem, The result followed at a respectful distance by a closely packed bunch of runners-up. Despite the weather, which really was very depressing, the great majority of skippers admitted to having enjoyed their weekend. This is a tribute to the New Forest club who ran a well organised meeting with good sense and good humour. 1 Torvald Klem Norway 18.75 [ 30 Vic 2 Roger Guildford 3) John Brooks 34.50 | 32 Roger Fleetwood 38 4 Tony Owens Dick Eastwood Hong Kong aS Danson 38.25 | 33 Doug Green 5 Derek Priestley New Forest WS<75 Fleetwood Clive Colsell Hove 6 Norman Hatfield Chelmsford 41 7 Tim Fuller New Forest 41.25 | 35 8 Squire Ashton 9 Peter Stollery Guildford 42.25 | 37 10 Lars Andren Sweden 44 it Barry Jackson Ashton 47 12 Chris Dicks Clapham 13 Patrick Tailliez 14 15= 17= Stollery 32 #3825 | 34 Cooney Woodley 74.50 Stonham New Forest 74.75 & Brighton Fle iS Louise Smith Leicester 80 Len Poole 81 Rob Owens Danson 84.50 38 Alan Youd Fleetwood 88.75 39 Mark Dicks Clapham 89 47.25 | 40 Nary Colyer Leicester 90 France 51.25 141 Dave Andrews Dave Potter Birkenhead Leicester 90.75. 53.72 | 425 Ron Leckie Tony Drury Doncaster Inverleith 67 Graham Bantock Chelmsford ye John Cleave New Forest \o7 Maurine France * Kay Trulin *41.25 | 36 25 50 Thompson doo Emile Servella France 44 Jack 45 Ken Putler 46 Jean-Claude Lee ) Etherow 93 Bournville 95.75 France 98 19 Elizabeth Andrews Leicester 58 20 Alex Austin Guildford 21 58.50 | 47 Mike Hounsell Derek Stevenson Danson New Forest 22 58.75 | 48 Brian Corley Graham Hull Cheltenham Woodspring 100 23 62.75 | 49= Neil Woodspring Robert Kirkham Doncaster 65 401 Tony Powers 24 Prian Cheetham Doncaster 65.25 25 Patrick Gerodias France 66.25 26 Norman Curtis Woodley 67.75 27 Jack Hammond Cheltenhan 68 28 Robert Leicester 68.75 | 55 29 Bob Willenbrook Doncaster Alf Nicholson Leicester 74 Mike Kemp * Rothwell Smith Gibon |51= Russell Chelmsford ) Potts Danson Ashton 153 Harry Parry New Forest 104 54 Brian Decker Cheltenham 108 56 57 58 16 103 Jim Parker ) 120 Milton Keynes re-count 99 122 J. Morrison Etherow 127 C. Cheetham Doncaster 134 Nylet Yachts New Yachts - also new, NVIE Et TAX ACHUN by Roger Stollery/Alex Austin. now available from Nylet. The Classic 36 inch yacht This yacht combines the new standard hull shell with other parts moulded in GRP from Roger Stollery's "AXE" design, that is, keel and rudder, and uses the 'swing rig' as pioneered on the infamous 36R 'A Whiter Shade of pale'. The result is a boat that is sinple to make and rig up that will give a good performance under radio. Displacement is 10lbs with 6lbs of lead. The rig is simplicity itself with no standing rigging, no deck fittings to speak of and no kicking strap. Hull and plans only,£26.75 . K33 kit comprising hull, ply deck, mast and booms, white working rig sails, GRP keel and rudder, swivel fitting for swing rig & plans for £76.95 . NEW Prices include VAT, ex works. Add £3.75 for U.K.post. Nylet RM "GYPSY" New during June, this advanced radio Marblehead is‘ available in various modes from basic hull & deck shell, progressing to full kit of parts including GRP keel with integral lead ballast. The complete kit only requires insertion of radio, location of fittings and rigging before sailing. Full details in our catalogue, or send first class stamp for details. NYLET SAILMAKING SERVICE ‘custom made' range. We now offer 'standard' sails in addition to our In a variety of colours and materials including 1.90z Mylar for light weather rigs; M class suits from £15.00 plus post. Our range of fittings has been increased, with many parts updated; selection of grooved masts and boom tubing, all anodised (black anodised finish available also). R/C equipment includes the "Whirlwind" sail winch (by David Andrews). Our catalogue (fully illustrated) available world-wide; 90p post paid in U.K.; Eire IR£1 note; Abroad - Australia, New Zealand,Canada, U.S.A. and all other parts of the world $4 currency notes; Scandinavia 15Kr. Please quote 'Model Yachting Newsletter' to entitle you to a special voucher refunding the price of the catalogue with your first order for goods value £30 plus (U.K. & Eire only). NYLET Ltd. Cardholders may order by Access. Station Road, Fordingbridge, Hants, SP6 1DG, England. "phone 0425 53456 Lr? GRAHAM BANTOCK, 35 The Paddocks, WITHAM, Essex, ENGLAND, CM8 2DR. tel 516248 | INTERIM PRICE LIST ISSUED MAY 1984 and valid until 31st December 1984 Some important available. A additions to These SERIES OF FIVE drilling, of sails, masts and fittings are now are: 'SWING RIG' Each kit comprises wire,cord, the range KITS FOR RADIO MARBLEHEADS drawings, bowsies and cutting, mainsail, fittings. filing and jib, anodised mast Work required assembly. Glue to is and complete not spar materials, is reduced to hand provided but is not essential. The finished result is a self-contained the yacht in seconds without preparation can be time and sail un-stayed rig being de-tmned. changing time i Area 800n" facility reduces boat to a fraction of the norm. broken down into the basic component Nominal This which can be removed from parts for The rigs easy transport. Standard Standard Mylar sails, mast sails, CF mast & jib sails, CF mast & jib boom boom GROOVY eho 800 4o 700 38 £72 - 35 52. Postage and packing: Number of rigs UK a 22.50 2 or 3 rigs 4.00 4 or 5 rigs + 5.50 add £5 if order is for carbon fibre mast kit. A SERIES OF THREE UNA RIGS FOR RADIO 36R CLASS YACHTS Each kit comprises mainsail, anodised mast and spar, wire, cord, bowsies and drawings. Work required to complete is reduced to filing and assembly. Glue is not included. As with the swing rig the finished result is a self-contained and easily tuned rig - see Model Yachting Newsletter Issue 16 for full details. Rigs are also available completed or, where transport of the mast is prohibitively expensive, in kit form without the mast material. This can then be purchased from one of the local suppliers. Nominal Area Kit Prices inc. VAT Kit Kit excluding mast including mast £19 £24 Completed rig at 15% 900 o" I HE 58 650 19 24 33 TIT 46 400 19 24 33 Postage and packing of kits without masts,£1.50 for one plus 50p for each additional kit. See price list for mast carriage costs. UK prices only. S.T.R.A.B.O. A STITCH-OF-GLUE" MARBLEHEAD Much of the time now, boat building is done in GRP, process for a one-off. better proposition, Also the normal GRP but it is quite a time-consuming is not a stiff material. in time of construction, in stiffness, and Ply seems a specific weight. Specific weights of african mahogany ply and of glass reinforced plastic are respectively 7g/mm/sq dm: and 15g/mm/sq dmz. The stiffness modulus E for ply and GRP are also respectively 1.26 x 10°kg/sq.cm and 0.54 x 10°kg/sq. The weight ratio to obtain the same stiffness is: P'GRP/Pply = E 13a Re 2.6 where pl/3 a {E'd'P' > GRP Edp For the same stiffness, —ply a panel of GRP is nearly three times as heavy as a ply panel. Lighter and faster construction can be made with a frameless ply hull; R. the late Rametti had obtained very good results many years ago with such a process. introduction of structural glues, such as epoxy glue, the use of the “stitch and glue” construction, Mirror) size Design but not in model well known for dinghies (Square One, (OK, Rametti had introduced in the then French One Metre class, light hulls in ply, with maximum section well aft. these hulls have a prismatic coefficient CaSp:0.52. displacement, it = water level The rise of floor D sind reference has been made to the lm by the in a class of model yachts of which a thousand late R. before the Ramett R/C days, and to “Designing Small Craft”, nee S.A. oie + (—) The usual – successful LWL = LOA = 3.28ft the performance factor developed by trial and error introduced by Jd. S.A. = 10kg): 100 + 14.8 – (0-014)? the same L in £t. 1950s 1m model yacht had the following dimensions: D 4.5 10 =3 T S.A. (roach included)5.80 sq.ft 3 7011) 2 = 127 and P = 100 + 0.212 – 127 = -5.721 LWL 4.23ft D 131 = 1010 °T the one of the From D we can calculate b, vee” SA(-d-) 6.89 SA = 270, D Img p?/3 factor than the from the design of a lm, positioned with four fin, suits Original rudders increased. 1M, 22 lbs, giving fin and rudder Stollery far aft, = 42, giving sa/p-/? P = 60.7 Having obtained D thus the hull friend H. is very well balanced, the rigs are to be in “old” designed by our of the heeled centre of buoyancy of the hull. has been given (0.01L) 3 and complete the design. hull with rockered buttocks fashion, sq.ft. (displacement -16.2 and giving a better performance design drawn (in D displacement in Tons With D reduced to 6.10 > we have: nearly Teale, sail area in sq.ft In the 1950s the usual British M had,the following dimensions nearly had been produced Nautical Publ.Co.) D giving sayp’”* = 219 P Usually If L is the LOA/LWL and D the To chose the right D, ® was is easy to calculate the waterline beam b= L cp = Fireball, Tricorn…) determined by the range of usual heeling of the hull, between 20 to 27°, b that is concepts The late R. chined so much allows a further step; The Boussy. The “deep- as determined by calculation This hull “after Boussy”. inspired. Rametti With this centrally and only two rigs (A and B) are designed, rig B. (vane or RC) had been found too small, In the vane version, and their area had been a moving carriage vane with a big 19 feather and a Iongeere bers bok 1285 em = loagverr flettasng 120.5 Jar gave max? 25,4 larger foe? 126 Trrant d’eau VIET ‘placement 6900 Socface oilers “6340 grew g = ter fmm x2 doings Speaide) 9 7 i ; 2 2 | cm? | ome | we 4 ‘ } | | sett LTS ee! Sap ! NNN N Ss | Nee fi acy ri =/5 acc ee | if , —yal = hatte piepiter x} at ceverajsint ——reban rarrerepeny ou. Ww 4 Bel 4 RACCORD art] i s PEN 15 dia it P zi: zai i ae : A hit Cie 2 < A) long veer apres satemblng es. gf Vagys SMW TES fies ce te ais we Ney Now sae i t =a 4 verre §33) \ ory bal a ivilaé as gs ic) yy ¢ Mi Q S yy xe qj 3! 3 Ayveler in y i PANNERUX 2 dpe. Wov\ fy& : DES i ene bus Bl eat ' ° y Kt G / \ / = i. TM ~a longueor ee bové 7285 om longuevr flettarsen 4205 Jargeur maxTM 25,4 largeor f/o é? 22,6 Trrant dA'ean 739, 5, Dé placement ~b000 one Surface vovivre “6300 eal ~ long arm to the feather will give enough power to move this rudder, unbalanced when unlocked, big feather. the “break back" is not enough aft of this backstay to allow the use of a More positive guying will be obtained, a very necessary improvement, with the moving carriage vane. Perhaps, for R.C., the fore on the large redrawn with this fore freeboard reduced by %", 19mm. (Imm plywood for panking, freeboard is 0.8mm ply for deck), side. The sheer With lighter can be scantlings the weight of ballast will be the same. The drawings include full size patterns for the panels (score panels with knife and break with fingers along edges). Cut port and starboard panels wood panel. Try to panels together taped Stitch p and s When all back to bottom panels, back and add starting epoxy glue the seam. control the distances side panels. Insert stem and stern transoms "inside" these pieces, well put a at midships, inside, piece of to act as knees. and wood, prepare the straight, When dry, glue the sky When is , cured, and then everything adjust Prepare the deck slope to Varnish well Glue put a a p and towards s). ends, from to the from the cured, sides Avoid warping, forward aft for glueing. to roving glass sand, put a and avoid warping. (and sky). and the epoxy tissue and open carefully this centre For these Then glue and put upside down on two blocks. To between bow and sky obtain stern, (from the saturated around right :positioning and a trial inside). the beam. When centre box and epoxy. the bottom panels under the centre box. the pattern and glue the reinforcements to the underside. Give "inwales". insides of the deck of remove the wire, after trimming of shell to length; centre box strand of ribbon of is well box and some (careful! (fingers are very good spatulas). Glue with plenty of epoxy the centreboard, the the ply- Adjust carefully p and s working from chine to chine, stitch and glue Sand the chamfer curvature of then put more stitches of copper wire between the first ones, light glass tissue with epoxy operations, "glass" the natural Then progressively close the gaps with more turns to the copper wire. is 0.K., ribbon of careful of introduce convexity to the panels. section to section, 14" apart. and be shell shell and underside of deck and Pins are top of centre box; are useful to removed and deck adjusted with topnotes. hull as usual. This “building-board-shadows"-less method very fast (glueing pins (except area to be glue). and glassing of each is a bit dirty seam), but very (for have enough pressure Then finish your finger + epoxy), not easy. J.P. DOLE ROBBE WHIRLWIND SAIL WINCH The best sail winch for all R/C yachts designed by yachtsmen for yachtsmen Two versions available; standard & high power fast, powerful, lightweight, selfcontained, 1% sheeting accuracy David Andrews 49, SAE for de tails Aberdale Road Tel: 0533 883309 Leitester, LE2 6GE va MYA publications Orders for all M.Y.A. Chris Jackson, publications as listed below should be sent to:- 5 Crofton Court, Cypress Road, South Norwood, SE25 All orders must be accompanied by a remittance and cheques etc., 4BB must be made payable to the MODEL YACHTING ASSOCIATION. each per dozen 6p 60p Rating Certificates - 10 Rater class 12p £1.30p "M" Class 12p £1.30p 6 Metre class 4p 35p 36 Inch Class 10p £1.00p "A" 12p £1.30p Declaration cards Class plus Rules: Complete set comprising: Class 10 Rater Class, the Radio Control "M" 20p postage on all Free Sailing Rules & General Rating Regulations; Class, Sailing Rules. £2.25 per set With binder £3.50 per set Rules Competition Rules, Rating Regulations,Vane Racing Rules £1.00 "A" Class Rating Rules 10 Rater Class Rating Rules 40p 20p "M" Class Rating Rules 25p 6 Metre Class Rating Rules 25p 36 Inch Class Rating Rules 5p Radio Control Sailing Rules (with 1983 Amendment) £1.00 Binder if ordered with any one of more of the separate Rules made in batches and there Racing "A" 6 Metre Class and 36 Inch Class Rating Rules and Loose Leaf: Separate items are times when availability is a (binders are specially problem) £1.25 Schedules 70p Free Sailing, 4 - 20 boats, per set Note: for Free Sailing Schedules over 20 boats, please apply to C. Colsell, 65 Ambersham Crescent, Sussex. East Preston, Racing schedules for Radio Controlled sailing may be obtained from R.R. Potts 8 Sherard Road, Eltham, London SE9 6EP £2.00 per set inc. p & p Standard set 6 - 24 boats £1.00 per set inc. p & p 25- 30 boats Computer printouts for 31 boats - 36 boats schedule are available on loan for a deposit of £3.50 per schedule. MEASURERS' There GUIDE is available from the M.Y.A. an eight page guide for measurers giving full dimensions for tanks and cradles to correctly measure all classes of boats. CLUB SHOULD BE WITHOUT ONE. Apply to: M.Y.A. Hon. Secretary 6,Rowner ALL PRICES INCLUDE SECOND CLASS POSTAGE 22 AND PACKING NO R.G.Gardner. Close, EXCEPT Rowner, AS Gosport. STATED TWISTER 36 INCH RESTRICTED CLASS MODEL RACING YACHT DESIGNED BY ADRIAN BREWER ‘Including variations to enable rating as American 36/600 and International One Metre 36r LENGTH 36ins. (914 am) max BEAM DEPTH ae etc are available 11 ins (27.9cm) max 14 ins S5cm See also the clear at 100cm max 22:9em 36 in the the price letter in this cm £4 issue that including issue if you (3 937ins) 488kg (19 75Ibs) 3:18 kg ( 7Ibs) 600sq, ns mecsured last of ins 9 85Ibs 7 Ibs NOT MEASURED not made _ 9 ins 985Ibs 7ibs RATING RULES was 36 ins max 36ins (94cm) DISPLACEMENT LEAD 10/40 Sins (229cm) max SECTIONS SPACED It 36/600 —-»-39.63sq Dm. (40 max) full-size copies of this 36 class boat postage and packing. sail under the U.S. 36/600 rules. for sale R1OR HOLLOM ECLIPSE: 2 rudders. Complete. Price £175 or £125 4 suits Bantock less radio. D. sails, Andrews Whirlwind winch, Leicester 883309 R/C complete. wanted Plans of 36R Vane Design Piccolo. I.W. Cooke, 72 Bibury Road, Also s/s screws. Hall Green, Birmingham 021-777 2519 Voile Vitesse a Autun My visit to this event the atmosphere and was very enjoyable and lived up to the expectations both as regards interesting boats on display. A more detailed description of the boats and outline drawings of one that was an excellent perfo rmer will follow in the next For the issue. benefit of the more sceptical British down for a race with ten tri-marans, a proa, interesting wind. experience even in light I 3 My 23 can confirm that a 60 second count- RM and a RI1OP can be a most nerves have only recently recovered. THE J. OLIVER YACHT AND DESIGNER LEE BOAT BUILDER OLD MALTINGS BURNHAM ON ESSEX CMO 8AS MALDON a Wd rt) _ Ga =z w a « a i > i me (=) a wo a OLIVER LEE QUALITY. . = < 2 =] rs =< oO - Ss iv w a ao | > Ww a GLASS FIBRE HULL AND DECK. ANODISED ALUMINIUM KEEL FIN. 4 uJ irs) =< 2 Q o =) a a = nm Ww a a lu a we oO e = 4 = oO ive x 2 Oo fo) a wo WW a - < a 2 = i =] I 2 = o> fo) a et I i a 7s . ba) WwW w QUAY CROUCH ENGLAND (0621) 782305 w*yf(GOBd‘HYS3¥Nvu7L8IATVWCMt)Z °J“DU4s A RACE WINNING FORMULA e AND OLIVER LEE VICELESS HANOLING QUALITIES wo a = a wo x nl Bb o oS = a a} ta = J 3 tl = < ° BANTOCK RACING SPECIFICATION SAILS x - =) Q J Go x we toe) = bE oa 2 oO o - STAINLESS STEEL WIRE, DACRON CORD, MAHOGANY RUDDER BLADE, ALLOY RADIO MOUNTING BRACKET AND SADDLE. TO OLIVER LEE NOW FOR COMPLETE SPECIFICATION, LEAFLET AND PRICE LIST. SEND S.A.E~