Model Yachting Newsletter: Issue 4 – December 1980

-‘mocdel 1280 yachting newsletter at : re Pi “ whilds 25 hoe masthead As we have now received a large number of new individual subscribers, we hope those of you who have seen issue 1 will bear with us if we repeat a few basic statements to clear up the points raised in various forms by our newer readers. WHY QUARTERLY? Because this allows time for the volunteer labour to produce the Magazine and also sail and even build new boats. VANE OR RADIO CONTROL? The editor sails both types and can see the positive side of the arguments for each method. Clearly the bigger numbers are in radio but a greater percentage of vane sailors seem more interested in design development and construction. We hope to reflect both aspects of the hobby without “knocking” the other. FORMAT OF MAGAZINE. Designed to be fairly straightforward to produce to the printer and yet be of a quality that reflects a serious pastime and sport. We notice the errors too! CONTRIBUTIONS. We are open to all model yachting views, and indeed hope that non M.Y.A. boats such as the Duplex 575 will be interested in letting us know how they are developing. If you have a view on any topic please don’t hesitate to send us your ideas, extreme, cost. however and if possible, we will find room for your comments. The subscription represents just over two gallons of petrol in the U.K. and allows for direct first-class mail. The overseas postage rates vary, but in gereral we are not making any greater margin on these subscribers and we hope that we can continue to send by first-class air-mail in future. ADVERTISERS. We accept advertisements from known bona-fide model yacht fittings makers who assist us to finance the Newsletter by this means, and in turn we hope to help people new to the hobby to find out where to get those awkward bits and pieces that the local model shop never stocks. ISSUE NUMBERS. The first issue was a publicity handout sent free to a large number of people to show the basic idea. shows as 0380 – MARCH 80, ISSUE 2 is the first subscription issue, and the date 0680 – JUNE 80. subs Subscriptions run from JUNE (Issue 2) to MARCH 81, and we still have copies of back issues Nos. 2 & 3 for new subscribers. Please make cheques payable to:Model Yachting 81, Newsletter, Nipsells Chase, Maylandsea, Chelmsford, Essex CM3 6EH. 1980 subscription is: £3.00 post paid U.K. £5.00 post paid ABROAD. adverts If you wish to place an advertisement to sell any quantity production of hulls, sails or fittings, please contact the Editor to discuss direct (MALDON 740149) The advertisements for sale of secondhand boats etc., subscribers, are currently put in free for as we believe that far too many boats rot away sailed by new owners. in clubhouses and might get sail 8O Having talked to most of the British competitors, we now have received a more detailed account of this event which must be the first international held in the North American continent. The organisation appears to have lacked available, sufficient numbers to make full use of the lakes with the result that whilst the EC12M fleet of eleven boats had continuous sailing over four days, the 10R and M fleets had to fit in with each other and the numbers involved (around seventy M class) meant that each boat got a limited number of races. Measuring caused some problems of rule interpretation as might with the M class, curved roaches, where U.K. mast bends, rules are by sail numbers, be expected, particularly no means accepted in many other countries, e.Q. etc.,. The American and Canadian boats had extremely well-made sails of very light cloth and as a result had the edge in the very calm conditions. One 1OR had its rig hoisted ten inches clear of boats seemed to be fairly the deck in light weather but generally standard with most attention paid to detail We have a photo of the winning Marblehead sailed by B. Van Koughnett fittings and radio. (who reportedly spent the previous six months off work practising) and you can judge for yourself the neatness and attention to finish which is apparent. es (PHOTO – BARRY JACKSON). 36 nats The above Championship was held at Leeds and Bradford club on the weekend of and 2lst. of September. Although there were only resulted in an enjoyable race and with many opened the door for nine entrants for the race, of the “established stars” someone else to make the most of the opportunity the 20th. it not competing it presented. The race got under way at 10.30 on the Saturday with Martin Roberts and his crew Martin Dovey still missing. M62 and were, It became known later that at that time, luck would have it, the second board. still being towed to the venue by a theirs was the first bye and It soon became apparent the liking of the oldest boat in the race Jones’ they arrived The wind was from the North and for these little boats. Walter the luckless pair had ( broken down on the passing motorist. As in time to take part in fairly light, giving ideal conditions that the conditions were very much to in terms of design), “Hermes” taken from “Ariel”, The following day the wind had spun through 180 degrees and freshened more than a little, presenting some skippers with problems of broaching. The three leading boats from the Saturday continued to keep one another in sight and final board arrived with “Hermes” and “Piccolo” sailing one another for the Championship. lst. Hermes 1.Steels/S. Armour Leeds & Bradford 59 points 2nd. Piccolo J. Bush Fleetwood 56 points 3rd. Phantom Raspberry MTM. Roberts Birkenhead 52 points Blower 4th. Donald Duck DO. Geldard Leeds & Bradford 36 points 4th. Piglet G. Griffin Cleethorpes 36 6th. Rumplestiltskin T. Armour Leeds & Bradford 32 points 7th. Nebula B. Barber Leeds & Bradford 8th. Microwave P. Gilbey Cleethorpes 31 points 28 points Sth. I’m Sorry I havn’t R. Etheridge Bournville 27 points A the points Clue The Boats. None of the boats competing were of recent design and perhaps it is a feature of the 36″R that it no longer fulfills its’ purpose of providing a sport and an introduction to Model Yachting for the newcomer. A boat of this size is invariably harder to sail than her bigger sisters and the number of events for this class is hardly likely to inspire anyone to build. It appears that it is up to the few enthusiasts left to do something to resurrect its’ fortunes. It is a pity that there are not many R/C 36″ boats to go some way towards injecting some new life into the class. P. Maskell GS metre nats Newcomers to the hobby who see the rules for this class may be forgiven for wondering if any boats still exist. Small fleets sail in Edinburgh and the Midlands, and this years championship saw a keen contest between a small number of enthusiasts. Although measuring is more complex, the boats might appeal to Radio sailors who are looking for a 20 – 301b. displacement boat of similar size to an M but with overhangs and a more “scale” appearance. (GRP mouldings of the lst., 3rd., and 4th. boat are all available!). The newest boat was a “modified and scaled” version of the A Class “Kubernetes” and was still being sorted out by skipper, Ron Openshaw and “designer” Roger Hatfield, in its first race. C.W. Sykes. Results:- 1st. 2nd. 3rd. 4th. G. Bantock R.G. Williams C. Jackson B. Openshaw Polaris Bionic Leek Sonatina Dolphin 44 38 34 27 6th. Tth. I.W. Cooke W. Akers Treble Chance Ariel 21 points. 20 points. 5th. RM S. Smith Oberon points. points. points. points. 26 points. nats As this report will be printed some time after the event, a blow by blow account of proceedings would seem to be of little interest. A personal visit by the entire M.Y.N. staff allowed us to talk to most entrants and a complete breakdown of equipment used is given overleaf, together with finishing order. The weather was light on the Saturday, a very fine wind and beautiful sunshine to give perfect sailing on the Sunday, reducing again to light on the last day. On Sunday, the 0.0.D. used a long first beat to sort out 10 – 12 boat starts and the course set gave over a quarter of a mile windward work in each race. Despite this very sound plan by the 0.0.D., a number of protests occurred (four in one race!) and as a result a lot of time was lost for most of the fleet whilst the arguments were sorted out. No blame attaches to individuals who “use” the rules in a championship, but a number of skippers were iritated by the delays involved. In view of the expenses involved in attending a three-day race, surely every effort must be made to ensure racing continues during the entire day, otherwise, more and more people will be put off from travelling. Visitors from Sweden and the U.S.A. added an international flavour, but none showed much form, being used to lighter winds. Let’s hope, however, that they got enough time on the water to justify the immense distance involved to get here and will return again. Many of the leading boats are already well-known at regattas and the common factor was clearly the attention to careful tuning of, and practise with, a well-tried design. Andrew Hollom’s boat is rumoured to be only 12 lbs. weight with 10 lbs. of lead but perhaps this is just a bit of “bluffing”. What was clear was his total concentration on sail trim at all times, even when he fell in the lake? Tony Owen’s “Trapper” was sailed with caution to avoid getting into protest situations and proves that, despite the current fashion amongst many sailors to believe that a load of extra servos are needed for success, the man on the transmitter is the final and most important factor. Chris. Jackson. Cartoon by Eric Nuttall Owen Y Not 2 Danson A. Hollom L Fantastic B. Jackson Leeds & Bradford Kalamari Ashton S. Kay TC4 C. Dicks Ashton Mnementh G. Hoer Clapham Wishfull Thinking D. Hollom Decoy Viking T. Fuller Leeds & Bradford If Only E. Nuttall New Forest Red A. Pollitt Fleetwood -ve Feedback Etherow Mirage Danson P. Beard Night B. Axon Miss Piggy Ashton R. Newport Super Star Birkenhead Hissing Bolton Dunford Sid R. Smith Scorpion 2 E. Caldicot Leicester Monkey K. Tulp Ashton E. Andrews Phidippides C. Newport Leicester Nitro D. Birkenhead Hackwood Moley P, Metcalf R.N. Nuts U.S.A. One Cleveland Bolton M. Dicks Red K. Waite Serendipity A. Savage Fleetwood Candyman J. Sleight Bolton G. Dowling Hopeful 2 Ryde T. Westerndorf Wind T. Richards Kings Lynn Sidewinder Danson Sular Bournville Clapham U.S.A. Shadow + Nows The Time A. Nicholson Danson Didlum Cane Leicester Smoothies Mornson Aquacrest Fleetwood Orury Etherow Dyptych Morrison Athena Leicester Winstanley Etherow Cefyl-mor Bellander Fleetwood Bee Two Proctor Sweden Moonlight Demo Danson Wood Atlantis X Sweden ND B No.1 uinwunw ong Sails: “Groovy”. Nylet “Aeromast’. Diameter. Putaba DA (Whirlwind) BI BI DA F DA BI BI BI BI BI Probar German DA DA DA BI BI DA BJ DA & Groove Bantock Number 1 Sails Solarfilm Chris Dicks John Amen J. Hoer (Apex) George Clark C. Sykes Own Make. Boats: TM2 SM3 nou Barry Jackson (Ashton Models) o “n ° ne Winch: Thro” deck stepped. Deck stepped. Carbon fibre. 89 o Potts BBy ~TM2zagun R. Masts: F Probar 2 Sykes Shadow BI Microprop ADWMDEHAHAFOH C.W. os Etherow DA 7 C.W. Rider O SERENE Rum RENE RENEE SE EO ieNED Owens II SEE SR Np he BHI IO 9OHRHRHO4H4SHO R.H. 3 * T. i CLUB a44 BOAT OHOAA review 4AAAHO4AAS SKIPPER class ERE © ol O DERE RENE Oe RM Trapper Mk 2 Seahorse Mk 3 FINAL R.C. SAILS DESIGN TOTAL POSITION F 8 Tm2 203 1st F No.l Light Weight DH 21 2nd F F F F F Reftec UHF BI SK cD 3H No.l 3H Zephyr DH sm3 247 Ashanti Kevlar Ashanti 247 22+ 274 282 314 334 43t 3rd 4th 5th 6th 7th 8th F SK Sm3 51 9th F F F F SK B SK it} sm3 TM3 sm3 sm3 514 594 593 624 10th llth 12th F 0 Superstar RM 63 14th F SK Sm3 64 15th F 3] sms 684 16th F SK Sms 77 17th Kraft JA Epic 80 18th F B Road Runner 92 19th Fleet 0 Superstar 94 20th F B/SK Sm3 97 21st F SK sm3 102 22nd F cD Shadow 103 23rd F SK sm2 105 24th F SK JA Sms a] 1k IT7 25th Fleet 0 Dowling Snr. 121 27th F B Tm3 123 28th F B Tm2 124 29th 0 Sula 125 30th F B/GC C.Yabsley 130 31st F SK SM3 132 32nd Sanwa JH SmM3 132 32nd Equal Acoms SK Kokanee 136 34th F B Dik Dik 140 35th Gem 0 Kokanee 150 36th F Sk Sm3 164 37th Multiplex Fm B B 82m O i} 1723 38th F B Sms 223 40th,Retired Kraft Reftec UHF F EAGLE Prothero 0 182 13th 26th Equal 39th FITTINGS Menufacturer of well tried and tested Model Yacht fittings, as supplied to several kit manufacturers and many private customers. One-off and standard items. Enquiries: Stamped addressed envelope pleise to:-— 31 Ely Cl., Southminster. Essex. Tel. Maldon (0621) 773318. skippers’ script I send you some slides of the A Championship. In marginal planing conditions, “Lollipop” is difficult to beat as she comes to planing quite easily, the new boat of Butler/Sykes or Graham Bantock’s boat. be successful (54 inch, 31 lbs, the more easily than I think that lighter boats can 889 sq.inches (measured), 1110 sq.inches If a good mainsail can be obtained with such a high aspect ratio, (as planimetered). (the control of the leech becomes difficult). It is possible to make some hulls of 17,950 kgs, sail area by the owner, and the 7300 for A boats! ballast the moulds of YAK’A (54 inch, FO-KONG, square centimetres. with some help hull is laminated F84, Usually in from Mr. Bertoux and myself, by the future owner (elliptical section, (F81), LOA 196cm., FO-KONG + Bertoux LWL 140, the club, WLB 33, the boat is built + myself. We have a steel from 50 lbs. down, with some filing). mould Besides (F82), we have moulds of a “normal” weight A boat 54 lbs.) with bustles, a good mould of an obsolete M (Skippy), a mould of a 16 lbs.). Several ballasts from 6.5 lbs. to 12 lbs., circular section, (54 inch, fin parts can be from several moulds. In France we have put no opposition to the so-called than the A but without deep draught and usuable a D (preparation of the mould), Bloodaxe, a modified Mad Hatter (with bow of Bloodaxe) and a very simple 10R cast 2, boat in weed fitting infested and the prognathous keel shallow ponds, I.M.Y.R.U. one design (M, EC12M. 10R), of A boat smaller good displacement, is an interesting proposition and 6M rules will be a better choice. Now a lot I think that (too many) of Boats are built from the same plug, with a 6M, it is a possibility to measure accurately the plug or the first have a boat, set of templates to allow the parts assembler conformity of his boat, steps” renewal of such as this EC12M. the 6M. A and to easily control the the first occasion, The sail plan is left to the owner’s taste. false one design, “young” for a (owner) accurate measurements taken at rating certificata. rating rule to a too put measurement marks on the plug or inside the mould, I with a “two- prefer a Perhaps the model boating is pity! J.P. Dole Robbe. Apart from Roger Stollery’s “Lollipop”, Council for the formation of a contenders, there is, I hope, soon fulfil the we have at present Open requirements a “one design” which is becoming events and District Championships. Whilst this minority any class, are condoned and accepted by Therefore, perhaps we should accept would them and not the usually them, to group, i.e. they will class. supported implausible excuses which accompany them, or start a because the numbers would register, never be put and on the be of undoubtedly flourish. They could be called be bothered to comply and issue numbers, no registered who foster yachts which could race officials, recognise them as a by those who cannot be necessary even measure They have not yet in National Championships. numbers or class marks. sailed by two or more They are easily distinguishable by the lack of distinguishing marks, one design, set set out to be a one design class. within our recognised fleets, too frequently seen in both appeared, one design class, which intentionally Unfortunately, which could by “APATHY” those who in races. It for that matter, sails anyway. “Satira” Name and address supplied. to cont’?d My first recollection of Model Yachting was at the age of 7 years, my father had a 1OR and was a member of the Forest Gate Club. Beach Yawl with Lug sails. He had made for me a model of a Lowestoft I used to take this to the Round Pond and sail her. I used to mate for my father at Forest Gate with the 10 Rater, designed by Daniels and built by him at his workshop in Fore Street, in the City of London. Later on I became a member of Forest Gate and also one of the first members of the YM6 at Surbiton sailing “Queen Bee”, which I sailed at Gosport A Class Regatta and later on an A Class designed and built by Daniels. I also owned a 36, 50-800. Among my friends in those days were the Messrs. Littlejohn (father and son), Daniels, Jimmy Edwards, Admiral Turner, John Black from Boston, U.S.A., M. Boussey from France, and Sam Berg from Sweden, and many more whose names are now almost forgotten. In those days when racing was finished for the day we gathered at the “Crown Hotel”, Gosport and sat yarning over designs, performances etc., of various yachts sail plans, the ratios and types of vanes. We were sometime soaking wet from rain but we all enjoyed ourselves (young and not so young) chasing round the pond. Today with R.C. the excitement has gone when near the line one had, perhaps, to make a fast re-trim, or if the wind fell as you and your opponent approached the line, as to who would cross it first. I look back on those times and wonder with all the latest controls whether the fun and exercise we had up and down the pond was far more beneficial than sitting on a chair controlling the model from the side. P.G.A. Bird. ASHTONMODELS 201, OLD ST. ASHTON-UNDER-LYNE, IT’S HERE? LANCASHIRE. OL6 7SR 061-330-1137 THE JACKSON MK.4 SAIL WINCH IT’S FAST………Sheets R.M.s from running to close hauled in under 2 secs? IT’S LIGHT……..Winch & amplifier together now under 100g. (3% oz.) IT’S POWERFUL…..Handles R.M.s & R1ORs with ease. It’s even being used in RA class successfully. IT’S RELIABLE…..Water resistant mechanics can be mounted up to 9″ away from amplifier unit so electronics stay dry in radio box. IT’S ECONOMICAL…Longer battery life! New circuitry combines absolute maximum efficiency, with crisp, positive proportional control. IT’S VERSATILE….Plug-in leads, to receiver, winch mechanics & battery allow instant removal of winch or amplifier, without resort to a soldering iron! The wiring stays where it is. IT SPLIT’S……-.eWinch & Amplifier can be purchased separately, either to reduce the cost of a secon installation or to simplify the transfer of equipment between boats. IT’S AVAILABLE….NOW..From stock, Winch, Mechanics only….£23. SEND S.A.E. for full info. amplifier and leads complete £45. Amplifier only….£24.50. & get our illustrated cat. of yachting goodies} RADIO CONTROL SPECIALISTS…MAII, ORDER NO PROBLEM…BARCLAY-CARD-VISA. give us a clue! Proposed Marblehead class rule amendments circulated by Chris. Dicks as a preliminary questionnaire for guidance. (Direct to clubs). “It has become apparent recently, that the Marblehead class rules are unsatisfactory in certain respects, particularly with regard to the measurement of sail area. has therefore set up an The I.M.Y.R.U International Sub-Committee to formulate revisions to the rules, with a view to returning to the intended simplicity of the original rule. The attached list of amendments is a preliminary list of possible alterations to the rule, and each club is requested to indicate its agreement or otherwise with each proposal in order to assist the Sub-Committee in formulating a revised class rule for consideration by members. When considering each amendment please bear in mind that the Marblehead class is basically a restriced class and not a formula development class such as the 10 Rater, and development in the Marblehead class should always be kept within the outline restrictions of the rule. Please do NOT suggest alternative proposals or amendments at this time, which revisions your club would like to but only indicate see adopted. These proposals are NOT motions to the M.Y.A. Annual General Meeting”. M class rule revisions – principles. a) Hull Measurement. 1. LOA 2. Bumpers may extend 4″ beyond hull measurement either above or below LWL, but must be should be measured parallel to LWL made of resilient material and be capable of minimising damage to another yacht in the event of a collision. 3. Alternative fin keels and lead ballasts to be prohibited (this may entail approximate weight and draught measurements). b) Sails. 1, Only one top rig of 800 square inches as measured to be allowed. 2. All sails for smaller suits shall be within the profile of the measured top suit and shall comply with headboard and batten restrictions. 3. All sails shall be basically 4. A rig shall consist 5. A jib or headsail the luff by 6. Only a cord one mast, triangular. of one or two sails only. shall not be set on a or wire having a luff spar and shall only be supported along maximum diameter of one and a boom at the foot sixteenth of an inch. of each sail is allowed, and they shall be capable of passing through a three quarter inch diameter ring except where fittings are attached locally. 7. Where only a single sail is used, front of, behind, or the mast, c) Sail Area Measurements. 1. Sails 2. Sails shall be extended in the 3. luff, and flat to the shall the be termed the mainsail whether mounted jib-stay height table, limit shall in not apply. not attached to any spars. from the three corners sufficiently to remove any creasing leach and foot. A mid-height measurement GB + 3″) angles d) shall be measured on a it luff with the sail shall be taken at mid-height of the luff, at right extended fully across its width at Additional Rule for R.m. Class Only. The use of spinnakers in the R.M. class shall be prohibited, 10 this point. Met. & Dist. In this area there are two different types of water, the inland lake and the coastal lake. It appears that there is a distint imbalance in the rate of growth of the radio yachts between the two: viz: Eastbourne has no serious competitors in Radio and New Forest has no serious competitor in vane racing. The reason for this is simply that with one or two notable exceptions, the inland lakes are not suitable for vane, because access all round the lake is impossible. The ROUND POND at KENSINGTON could be said to be the home of Model Yacht racing in the Metropolis. The M.Y.S.A. who sail here regularly are a friendly club, will welcome any visitor and even lend them a boat. Their main problem is the concrete lip around the pond which means that one has to lean well out to launch @ boat. Due to the number of other interests that use the pond, scale boats etc., radio racing is precluded. This must meke the M.Y.S.A. one of the few clubs to sail vane only. The district 10R will be held there on September 7th. CLAPHAM pond set at the confluence of the South Circular road has no such problems with other users, as they are able to secure the whole lake for their racing by prior arrangement with the Council. The lake is not large enough though whenever radio races are held there, the competition is keen. This lake has a concrete bottom which gives adequate depth of water, though there can be a little trouble with leaves in the autumn. A new lake to be used for the first time this autumn for the 36R open, organised by the Guildford club, is at EPSOM. This is of a similar shape and size to Clapham, the same concrete lip as the Round Pond. but with Being set in a hollow there can be some swirling of the wind, though there is good access all round for those who run into trouble. The change of venue from Elstead Moat was caused by the increasing weed and the difficulty of access at the moat. Guildford club’s usual R/C sailing water is at CLUB NAUTICO at ASH. This year this has been beset by a weed problem that has caused the cancellation of the Model Boat Trophy. This water is an ideal water for radio boats with a launching ramp and good clear vision of any course set. As much as it is ideal for radio, it is useless for vane sailing. The other lake that is beset by weed is the RICK POND at Hampton Court. Here sailing is normally limited to the winter months only, but it was used for some of the earliest radio races and continues to have regular events for A and M class boats. The best known of the coastal lakes are Hove and Gosport. the A class championship every two years. COSPORT being the venue for As with all lakes it is subjected to some wind shadow when the wind is blowing in all directions except the right one. This is the main venue for the major vane races in the South East. HOVE, on the other hand, has hosted some of the major radio races in the past, last year. most notably the Race of Champions The wind shadow here is to some extent dependent on the size of the vessel that is in harbour at the time! This is really just a selection of the waters available in the South East. There are coastal lakes at Poole, where a big course for radio boats can be set, Eastbourne, where the club sails every Sunday and at Ryde on the Isle of Wight. They contribute to make the district by far the most active in the M.Y.A. Peter Cobban. 2x full size RETURN aa TO winice4 tensioner FOR.CONTINUOUS LING WING SISTEM WITH fc SPRIN © WoUnND WIRE ON A Fap VP FRom THICK INSERTED IN STAINLESS SHReoMD HANP PRIZO LL, TURNS APPROX, TIMBER is our SPECIALITY We believe we keep the best selection snd stock of modellers timber in U.%. Every piece selected and cut in our ow fectory by DENNIS NTXON, SITKA-SPRUCE, BRAZILIAN MAHOGANY, ORECEI, AFRICA] WALIN bid an 56″, 48″ end 60″ stock lengths «nd 30 cross sections esch length. Send stemped ond addressed envelope for lists. Our premises are cremmed full of ell types of sodelling gocds from plastic kits to eirersft, cors, riilweys, bocts and now that Dennis has his om ?’rrblehe-d, we ere trying to find space for the fast growing stock of YACYT FITTINGS :nd bits. For personel contact ring Dennis eny evening (except Set. & Sun.), 6.30 – 7.00 which he reserves solely for this purpose, other times its usually Jorn who énsvers. In response to the meny enquiries a few mouldings of my “CRCHID” de:isn lM-rblehead ere being made cvailable. Our hours? Rin;: for details, price «nd delivery. ‘fe clise when Dennis locks up just after 7.00. PUNCTILIO MODEL SPOT Waterloo Road HINCKLEY Tel. 0455—-30952 Leicestershire. S c Y AVAITABLE: ) 4 kit of perts in cluriniu alloy, o 1 neluding SE w Fa acility £% 2 Ww 3 xo re) os oO fe) c = ie) oO a e& ge . se] c 8 D ec On wi Tel. Ol. (0621) 783890 Ss (9 Br2 fe oO < ‘ein boom/sooseneck/kickins boo: for and mest GROOVY ame boom for all 14.5 rigs. If you are ri; ting os this winter why not stub. & stsinless Designed with 12.7m mast @4TM4 : isé:il slide on/off sections luff on an 85" hoist?! new boat or re-rigving en take advantace reteinings existing one of the benefits offered b, the GROCYY luff groove wast section? Ider] for stepping through the deck, doing cwiy with the complicstion of a / | rotating nél st, end ::ain boo::. extre.ely The full sinple range of dir:.eters enables tepered masts to to 16.7, ilso FIBRE *ASTS: errbon Round fibre tene, 14.5 = and conven- 12.7mm be frbric ted end the sizes/stiffnesses required fro: CARSON rig with covers \‘arblehesds to "!"s, section, 75mm wide, t.pered,licht. by the metre. All regattas held under the auspices of the Model Yachting Association are governed by the Association's Radio Controlled Model Yacht Racing Rules and the following "Simplified Rules" are only intended to provide the beginner and spectator with a working knowledge of the rules. All the underlined terms are as defined in PART 1 M.Y.A. Racing Rules (1980 Edition). (Definitions) of the The less obvious being illustrated On previous page 1. YACHTS ON OPPOSITE TACK (M.Y.A. rule 36). A port tack yacht shall keep clear 2. YACHTS ON THE SAME TACK (M.Y.A. rule 37). a) b) 3. A windward yacht shall keep clear of a leeward yacht (M.¥