Model Yachting News: Issue 19 – December 1984

e S vAe AC RTeell:ge(t0e7,3 7S2d)m4y93R65AZ 9HO ING News MASTHEAD By the time you read this I am hoping to have completed a move to larger premises at the address above. It should be a little easier to contact me by phone as well! I wish all readers a happy Christmas and good sailing in the New Year. COVER PIC A Stollery Axis design followed by the new Stollery Bee and the prototype Draper Won by Norman Curtis to RM1000 rounding a mark at a recent Guildford meeting. complete a very successful season sailing the RM1000 including a district championship place and an appearance at the race of champions. PHOTOS For the Newsletter we like to receive good quality photos slide or negatives. Anything different, will (black and white only) be library fittings, acknowledged of photos and held sails, returned for boats sailing, where future use unusual requested. and will These not be shots of are returned also people etc. useful unless for all our specifically requested. ADVERTS We accept to finance hobby to advertisements the Newsletter from by known bona-fide model this means and in yacht turn we find out where to get those awkwards bits and fitting hope to makers help who people pieces that the assist new local to the model shop never stocks. If you wish to place an advertisement to fittings, please contact Subscriptions 1984/85 We have will full supply ordered Make with for NEW subscription year 1983/84 these at the new cheques run from JUNE is: of a quantity production of the Editor to discuss direct sets Address to: | the sell copies reduced to 7909). 1985. post £5.00 post paid EUROPE £6.00 post paid ALL OTHER COUNTRIES. of a few £3.00 paid MARCH U.K. 1982/83 per set copies (while still stocks subscription. payable hulls,.sails or £5.00 plus rate 1984 (01-653 to: Model Yachting 55 Yorke Reigate, News, Gardens, Surrey, RH2 9HQ, England. 2 in stock, last) if and us chairman’s column Since the first issue of M.Y.N. we have tried to organise the dates of printing to incorporate the latest news from M.Y.A. council meetings, even to the extent of the chairman delivering copy direct to the printer. Unfortunately this year the A.G.M. is on December lst, and in order to ensure readers have the magazine in the same month, we have decided to hold over the report on this meeting to the next issue. limyRu> As the next meeting takes place in January, issue. a full report will appear in our March sg BAD ey * KAU =: t Pind a If you fancy an than this An open start I Sven race is anh el bX f as theese interesting sailing holiday regatta lake ; situated used, involving and up to in a very apart 50 from boats, would for allow RM class some takes place over traversing sightseeing as well. the Peete }d Go in Europe this year usual have more details available on receipt of Racing ee lovely part the ; of Austria. circuit the races length an S.A.E. Thursday 16th to of you could do worse they also the lake have a (around Sunday 19th May, mass 2 kms). so a week letters. HANDICAP RACING WITH REMOTE CONTROLLED YACHTS Reading an interesting article about different types of yachting some time ago, learned that 66% of all “full-size” (Leading Yardstick System). 10 Rater, was only 2%! yachting in Sweden I is raced according to the LYS Racing in development classes, like our Marblehead and In Sweden we have had Mini LYS racing for RC yachts for two years now and it is becoming increasingly popular. In the most cmmon form of LYS racing the finishing and multiplied with the LYS numbers. times of the yachts are recorded The yacht with the lowest corrected is the winner. As the Marblehead is the biggest class here Mini 1.00. LYS number Other classes and one-off yachts sailing time it has been given the are compared with the Marble- heads and their numbers are entered in a Mini LYS table which is revised once a year when the race results from the season are available. statistics which class. to LYS number a certain extent also form of the for new one-off yachts and classes high side to be lowered when the Another reflects LYS numbers are based on LYS racing standard shall of “reversed is starting order”. time for the yachts are then calculated with the help of the LYS finish at the same time. form of racing is the wind strength which can change, in the available. A practice is sailed to establish the sailing time needed to finish the course. theoretically all yachts will yachtsmen be given a bit on the race results from the past season is done with the race The starting numbers so that An uncertain aspect in this but an advantage is that smaller yachts will not be covered by the bigger ones in the start. However the main reason for reversed starting order in handicap racing is that it is very exciting as the first yacht to finish will be the winner. We believe the that we have a quite 10 Rater class 1.08 fair relation between the Marblehead classs (views are welcome, though), but we would be very grateful for views on Mini LYS numbers for the other international classes. at 1.04, but we believe this to be a bit on the very competitive. Exchange of information 1.00 and We have the A class low side as our A class yachts with other are not countries would be very in teresting ing. JAN DEJMO Dear Sir, Whilst not wishing to unduly criticise an obviously fine model designer and skipper I do feel it is time that the true story of the Uni Boom or the SWING RIG was put into print. It was around 1970 that this rig was designed and used on an own design 50″ boat by a Mr. John Pearce of the Medway Club, where it proved quite a good idea especially downwind. In March of the following year we were asked to put on a static display of yachts at the Dinghy Show at the Crystal Palace, it was here that John showed his idea to Roger Stollery who also thought two that it a very good it would infringe the M class rules, mods until it was a most efficient rig, rig were although it was felt by one or John Pearce however made one or two but then graduating to Rl0rs the boat and sort of relegated to the garage, John took out no patents on his idea, of course idea so anyone was it must also be understood that free to copy and use it. So in order to even things up can we have a dozen or so mentions of the JOHN PEARCE SWING RIG in future articles, incidentally a similar letter to this was written by myself to the Model Boats Mag approximately 3 years ago of course never appeared…I it most M.B. it are mysteriously “lost” find for the correspondence column but surprising that many articles by the present editor. c.S. EDITOR’S NOTE: As I was present the late John Pearce Roger Stollery. at I can confirm the facts given above, In fairness to all, for his Cracker RIOR. GOULD the Dinghy Show menticned above and the on experimental keelboats beforehand, rig sent to “idea” also knew without checking with was not new then, having been used and of course John Pearce reverted to a standard Since then Roger Stollery has refining the rig and using it on MYA registered yachts. 4 put enormous work into cont’d NEW EDITION OF THE RC “TWELVE METRE” RULES The new RC 12m Class Rules have been sent out to all IMYRU National Authorities and all who have requested information about the class. The class is now open also for designs that have not been built as full seale yachts if these comply with the following restrictions. The measured satl area shall not be less than 1.5 m2 and the waterline length shall not be less than 1340mn. We are very sorry that some of you have watted a very long time not to receive these rules. The task of writing the rules for a scale class to the international “Twelve Metre” Rules has proved quite complication. When the first rules were issued in 1981 the intention was to allow only seale models of full scale projects. Since then a lot of interest in designing yachts to the RC 12m Class has been expressed and it has been necessary to introduce some resttretions on RC 12m yachts not built in full scale to avoid specialized RC 12m models. As the International 12m Rules usually are amended after the Americas Cup we have awatted the results from the IYRU November Meeting to inelude these amendments in the new edition of the RC 12m Rules. The class ts at present administrated by the Svenska Modellseglarforbundel (Swedish Model Sailing Federation), but the intention ts to hand over the control to an international RC 12m Owners Association as soon as posstble. We therefore would like to encourage the formation of national RC 12m Owners Associations in all countries with RC 12m yachts. The one-design ballast keel ts at the moment only manufactured in Sweden, wtll be pleased to appoint manufacturers in other parts of the world. the ter but SMSF However as are quite expensive ‘there will only be appointed enough manufacturers in each part of the world to meet the demand py ballast keels. Interested manufacturers are asked to contact the SMSF. We are very pleased to hear that Australia ts planning an International Series for RC 12m yachts in 1987, Will tt be Australia’s Cup? If this ts realized we hope that RC 12m yachts from many countries will aecept the challenge! Coptes of the new edition of the RC 12m Rules can be ordered from the secretary of the Swedish RC 12m Owmers Association: Lennart Holmgren, Jordfallsvagen 12, S-455 00 SURTEm Sweden, Please include 3 international reply couplons (can be bought at the post office) or the internattonal secretary of Svenska Modellseglarforbundet (SMSP): Jan Dejmo, ¥rokslatts Parkgata 65B, S-431 38 MOLNDAL, Sweden. I have been sorting out the workshop and passing out bits here and there – a complete secondhand mast and took to sails kit, 3rd October. local water – Pokfulham Resevoir, Only 6 boats managed to make were held in variable/shifting on their toes. we sold the BONE which I remain to be light winds. two downward protruding convinced that his of the distractions as we discussed 2nd Bill Sykes 5th Jez Collier it – and 12 Hong Kong Island on very long and frustrating races Competition was keen and kept everyone One of our members tried out his winged-keel which resembles a shark’s in design with “Spot”, and have also Sweden. A regatta was held on our body to a new builder, “Thief”, “Outlaw”, superior it! The side fins. speed was He not was very just his final positions were: 3rd Bill Duncasson “Royalist”, fast at times but taking advantage lst R. Eastwood 4th Peter Wood “Spot”, 6th Eric Zakoste “Bone”. I have just received a letter from a South African model yachtsman who will be visiting HK next and month. discussing We are sailing looking forward to entertaining him during his brief visit in SA etc. I have just ordered a swing rig from Graham Bantock to complete the refitting of KH3 a wooden planked Outlaw. Can you confirm the-designer of this model as C.H. Robertson? DICK EASTWOOD INTERNATIONAL RACING IN OSLO & LUBECK Some impressions by Norman Hatfield For,the second year running my wife, Sheila, and I crossed the North Sea to Norway in August to visit our younger son and his Norwegian wife and family, including our baby grand-daughter, born in June. This year, the Norsk Modellseilforening (N.M.S.) celebrated their 80th anniversary and our arrival fortunately coincided with their ‘Norway Open’ event. We had again shipped “Shogun’ in the back of the car but were determined to ensure that, this time, we would return home with all our possessions! Torvald and Wendy Klem were again our kind and generous hosts in Oslo and found us a safe place to park the car after unloading all its contents into their cellar over night. Better to be safe than sorry, we felt, after last year’s experience. It seemed that our arrival in Norway was the signal for the Norwegian summer to commence, for until then the weather had been very unsettled but the weekend of 11th/12th August was perfect, except that there could have been more wind. Ideal conditions, then, for the opening of the new N.M.S. clubhouse on Malmgya Island, an idyllic spot in Oslo Fjord, a few miles south of the city. The clubhouse is built of pine, about 60 square metres in area, with a large verandah on the water’s edge. After e speech by the Club Commodore, Morten Ténnesen, the opening ceremony of cutting the tape was performed by Ingar Gulbrandsen, who was one of the first to start radio sailing in Norway and who was responsible for much of the organisation and work in connection with the superb new building, which must be one of the finest model yacht clubhouses anywhere, if not the finest. A fascinating feature of the move to these new premises is that, after the original N.M.S. clubhouse was demolished years ago, all the old boats were stored in a container shed and these were ‘discovered’ and are now berthed in the new building. Amongst the several ‘A’, 6m and 1m class boats are those owned by Sam0.Berge, who won the ‘Y.M. Cup’ with ‘Prins Charming 11′ at Fleetwood in 1935 and 1937, using a non-self-tacking vane gear for the first time ever, the Braine gear being the universally used steering gear at that time. Sam Berge’s possessions even include his famous top hat and large bow which he donned whenever he won an event. Sam is now living in an old people’s home in Grimstad and has presented the club with a complete set of the pre-war ‘Marine Models’ magazine in mint condition. I took the opportunity to present a plaque to the club on behalf of IMYRU, which was well received. There followed a champagne celebration and we then forced ourselves to concentrate on the racing which, with 13 boats, was quite a leisurely affair, especially as the wind did not fill in to any appreciable strength until after lunch. The course was the usual modified Olympic with a good vantage point for the control position on the extremity of the island. The only problems we had to contend with were the wash of passing craft, which spilt wind out of sails, and some sea weed which occasionally brought a boat to a grinding halt! The fleet consisted of no less than ten ‘Lost Love’ designs or modifications thereof, one ‘Synthesis’, the beautifully built and well-known S333 owned by Bengt Andersin, reputed to be the fastest ever ‘M’ off wind, one ‘Bone’ sailed by Bertil Pauli and my own ‘Shogun’, a version of the ‘Netsuki’ which finished fourth in the 1980 Worlds in Ottawa. The result of having so many ‘Lost Loves’ in the club is that they are closing the gap on Torvald Klem, who did not have things all his own way this time, in fact the results show his eventual win by only a narrow margin of 4.4 points. On the Saturday evening, we all sat down to a delicious meal, prepared and served by the ladies of the club on the clubhouse verandah and we savoured the delights of a Norwegian summer evening in a perfect setting. The following day saw the concluding heats sailed in much the same light conditions and, after the prizegiving at 5 p.m., farewells were said and we commenced our 125 mile journey to Lillehammer. The results of the ‘Norway Open” event were as follows:- Skipper No. Torvald Klem N39 Gunnar Karlsen N95 Bengt Andersin $333 ‘Synthesis’ 19.7 Bjdrn Nygaard N13 ‘Lost Love’ 23.8 Morten Ténnesen N80 Norman Hatfield K3366 ‘Netsuki’ Svene Dahl NTT “Lost Love’ Bent Nilsen-Vig N69 w 49.0 Ingar Gulbrandsen N5 ” 54.0 Bertil Pauli S366 “Bone! Bjgrn Hellberg N65 “Lost Love’ Ragnar Hansen N35 By Ténnesen 79.0 Kashten Bundegaard N70 “Lost Love’ 88.0 After with bed and drove and board ” at 1 a.m. to be up we we felt did not first lose morning to (Mod.) to where Jan’s catch the we resumed Jan Dejmo kindly provided us Pauli, who We lives nearby, offered spent the evening immersed enjoy a delicious meal, offer of a slide ferry to show, Frederikshavn. docks by escorting us there and delivered the Jan and Annike 59.0 family in Lillehammer, experience of using a fully automatic grateful 42.7 (Mod.) did find time to our way to the devoured a 100 kroner note most 40.0 in his garden. obliged to decline early the next 33.0 57.0 and Bertil though we 18.4 (Mod.) Gothenburg, night 14.0 (Mod. ) ” and contents in model yachting topics, our “Lost Love’ south to for the safe parking for car that Score spending an enjoyable holiday with our our travels but Design as we had Jan ensured and supervising petrol pump which quickly appropriate amount for their kind hospitality of fuel. and help We were on this occasion. Arriving at Frederikshavn Denmark across the and at 1 p.m., border into we then drove the 400 Schleswig Holstein, plus miles arriving at through Niendorf, on the Baltic coast near Lubeck at 8.30 p.m., where we were to be the guests of Horst and Margarete Kronke for the following week. We had previously met in Fleetwood in 1982 (Marblehead Jubilee Regatta) and in Stockholm last year (E.R.M.C.). Horst is a member of the Vereinigung der Modellyachtsegler e.V., which, together with the Berlin M.B.C., are the only two affiliated to the full-size national authority, all the other clubs being affiliated to received was enjoyed overwhelming, a wonderful had obtained the from various clubs Again we were as ten years old. This boat has beam, transom the exact inset displacement but it with maximum in for us and we unknown to us. Horst organising a special the Berlin M.B.C. strong winds of the and variable Naviga Champion, of a yacht a short forward stepped well fittings strength and neatness. Janusz Walicki, of Polish design, forward. 12 previous conditions which overhang and is probably about an extremely high standard and all weight light skipper and rig The hospitality we done more and the weather but which was the extraordinary brilliance an have Lubeck M.B.C. in North Germany favoured with fine amongst Germany mainly for my benefit and this attracted 35 few days had by then given way to German fleet, and Naviga. exploring an area previously quite 26th August, in West the Deutschen Segler Verbandes, Nauticus could not collaberation of the regatta on Sunday, entries week our hosts clubs I scow The who said to sections, was unable lbs. suited the boat to is showed be about moderate determine finished to and rig are made to combine minimum Altogether a perfect combination which wes reflected in the boat’s performance. This was quite a revelation to me, were some of the other boats in the fleet and I concluded that the top ten as boats and skippers would probably be well matched in competition with our own top performers. I was not, however, so impressed with racing under Naviga rules, which allow marks to be touched on the correct side without re-rounding and infringements to be ignored if there is no call of ‘protest’. It was not until I had sailed in several reces that I realised it paid to keep well clear of the pack and that my calls of ‘protest’ were unheeded anyway! Allowing mark touching leads to much barging in rounding and some boats are inevitably forced the wrong side of the mark. There were, however, a couple of ideas which are worth noting. Racing was conducted under the fleet system, using an ingenious method of indicating the fleets after promotion and relegation by means of weighted cords and pegs for each skipper. Also, a starting ‘gate’ was used which prevented ‘round the ends’ starting and barging at the favoured pin end of the line. Altogether, then, an enjoyable and memorable event and it was interesting to meet so many model yachtsmen I had never had the pleasure of meeting before and who greeted me with a wermth which was most pleasing. At the prizegiving ceremony, there was a souvenir for everyone to mark the occasion and I was able to reciprocate with the presentation of a plaque to the Lubeck Club, suitably engraved, on behalf of IMYRU. I felt that this was a worthwhile meeting because it enabled me to gain a better understanding of the problems facing international model yachting in Europe. Scores of the leading boats in the regatta were:-— Le Janusz Walicki Harburg M.B.C. 3-75 2. Peter Rutetzki Berlin S33 Stefan Neubert Flensburg S.M.C. 25.00 4. Rainer Klores Berlin M.B.C. 29.00 5s Gerhard Mentges 6. John Helms M.B.C. 20.00 31.00 Bad—Schwartau M.B.C. 33.00 ‘Shogun’ finished in 15th place with a score of 78 points. One further outcome of our visit was a two-hour of the Deutschen Segler Verbandes in Hamburg, interview with the Secretary arranged by Horst Kronke, at which the problems of communication and administration of model yachting in Germany were discussed, some of which were resolved. Our week in Germeny included tours of Lubeck and Hamburg and visits to nearby resorts. Finally, we were escorted to Hamburg Docks, several where farewells were said and we embarked on the ‘Prinz Hamlet’ for the crossing to Harwich. After a four-hour voyage down the Elbe, we felt the effect of a force 7 in the North Sea which To somewhat sum up, I cannot dampened our appetites for breakfast all about meeting people Model yachtsmen are model yachtsmen the world over and, get when racing. morning! do better than repeat Jan Dejmo’s observation that international model yachting is when we next together we are all the best of friends in with similar interests. whatever our nationalities spite of intense rivalry The tables U.S.A. shown here will hopefully be of who will have read of their various interest to model yachtsmen outside the classes but be unaware of the general appearance of them. My main source of information is the AMYA magazine, but this has had major problems for the last year and my requests for photos of the more unusual designs has fallen on deaf ears. I am hoping the new editor will be able to help here. With a total membership slightly more than the U.K. figure it is surprising that in addition to those listed, there is one proposal for a further three one-design classes, the 54″ Affinity class, a l-metre design Arrow, and a Bud Salika O/D again like a stretched M class. In addition, the AMYA has adopted the John Converse designed 60″ LOA Scale Columbia 12m as an official class despite a very small existing known fleet, the 36/600 and last but not class least (if you read Adrian Brewer’s letter has split to form a 36UR class with a different sail 1 ONE-DESIGN CLASS Class Name Fast Coast Senta LOA Soling Newport tar Beam Draft PARAMETERS Sail rea Disp Rudder Type* —OLWL) __ Ag 2 | (.01 59 in 42 dn 11.5 in 8.75 in 26.5 Ib 1216 in? Att. 12 Barbara Soling LWL~ 36 12 45 J Issue 27559 14.9 70 61 13 12 22 1090 Spade 74.8 15.2 50 44 12 11 18 800 Spade 163.0 12.7 36 == 1325) 10 600 Spade 72 52 12 10.5 40 1560 Att. 46 == 11.5 14 — 1020 Spade 85 58 a= LL 50 2620 Att. 955 == 14.1 219.5 14.6 —— od 197.7 21.1 Macnum * NOTE: Rudder Type: Spade–Separate balanced Att.– to Attached NOMINAL Class Name LOA LWL 50/800 50 in 26/600 RULE rudder keel TABLE 2 CLASS PARAMETERS Beam Draft Dis P 49 in 1lin 16 in 16 1b 800 in@ 104.9 13918 36 35 1o 13 11 600 197.9 13.3 10 65 58 12 18 22 1050 87.0 14.6 A 75 55 = 13.3 Se 1600 168.9 qe Sail Area a (.O1LWL) RULE CLASSES 50/3C0 LOA – 50 + 1/4 in Ag – 800 in* max 36/600 LOA – 36 in max Ag – 600 in? max LWL 10 X Ag Rater = 7500 L+A, A Class 10 LK; + . = 1290- 39.37 in L– Adjusted LWL D– Displacement 18) roach and cloth rules. TABLE in 5 (inTM) 3 *s vy 273 You can reassure your correspondent. There is no change about lm rating rules. Moreoever there aren’t any contradictions between those rules and the design of my boat. The rules limit the sail area to 40dm2 (forty square decimetres) but they do not allow for the roaches of the sail On the “one meter” the main sail headboard yacht, is (10cm, quite leeches as in M class for instance. the breadth of the roach of the leech is very important on the same as for a “A” wide too yacht but on a far smaller yacht). (5cm). The jib can also be measured favourably provided it perpendicular to the stay. The The battens are free. is designed with the foot Which in the end results in real areas much above the measured value as registered on the rating certificate – 60 to 70% additional when making the most of these remarks. The height of as it the mast (1.45m) is less than 1.6m. the hull is old, on my boat for It has been limited on purpose. designed in “cotton such an advantage of is correct the roach of the sail” sail. the rating it in so far For 2 reasons:- time which did not Therefore rules enable lacks power it to take and displacement for modern sails and does not allow to make the most of the above remark. M. LAHURE INTERNATIONAL 10/40 CLASS This class of yachts is not subject to a rating formula. The limitations are the following: A. OVERALL LENGTH shall not exceed 1 metre. The rudder, where it ts articulated on the outer side of stern, and the bumper are in no case to be ineluded in overall length. Overhanging rudders are allowed. B. SAIL AREA shall not exceed 40 square decimetres and shall be taken and recorded as follows: a) Main sail: height along mast multiplied by length along boom divided by two b) Headsail or jib: 85% of half product of the luff rope s= 224 40,95 22% C. 40 an? HEIGHT OF RIG The maximum height of rig, measured from the deck to the lower edge of the headboard shall be 1.6 metre. The height above deck of the jib stay shall not exceed 80% of the actual height above deck of the lower edge of the headboard (maximum: 1.28 metre). D, SPINNAKERS The maximum spinnaker foot for any rig shall not measure more than twice the foot rope of jib (D) plus 6 centimetres. The luff and leech shall not be more than the actual hetght of fore triangle. There are no restrictions as to the spinnaker boom. E. SAIL LIMITS a) Headboard shall not exceed 5 em in any dimenston b) Roach of the main sail measured at right angles to a straight line from the after corner of the inner edge of headboard to the clew shall not exceed 10 em. e) Roach of the jib measured at right angles to a straight line from the head of the sail to the clew shall not exceed 4 em. d) There are no restrictions as to the number and Length of battens. FP, HULLS Only monocoque yachts are allowed. The bumper can be shaped continuously to the hull and the maximun length allowed shall be 1.5 em. 10 model yachting news A new RM by Andy Mcculloch from Northampton, with a very wide hull form. A view of a new experimental sail used briefly on Graham Bantock’s boat at Gosport. Supertramp to the same design did rather better sailed by Peter Somers. Li 12 Bill Green’s beautifully finished 6 metre to the Polaris design, showing extended stern, illegal on new boats. A more traditional looking boat, scaled down from the heavyweight Lewis boat Kubernetes, owned by Roger Hatfield. RADIO RACING SCHEDULES JOHN Having been on the receiving end of some pretty strange race OSBORN schedules, heard the misleading comments of some quite knowledgeable persons, that the all techniques of scheduling which I regard as be such common knowledge as notes, I supposed. it occurs to me standard practice may not after Accordingly, as I set down these few I hope that they may be of particular benefit to new racing secretaries, may also be a useful reminder to some of the old hands. There continuing discussions about the relative merits is of course a and schedule systems is for the not to involve myself in that area expect radio frequencies number of boats in restraints and objectives. common use was and a limited to six, is available, objective of However, this is it may be to and the race each observers and 0.0.D. sandwich etc. ten boats per races in circumstances may “rest” Above all else, 1. The 2. A fair result to the competition. also have led to to use a a lot of This has this “computer age”. “The computer does computer six- examples which of are time. The trim, always be course, effect may be change sails, served by having two objectives must to print of The eight to remembered:- both skippers and officials. the since someone found it format frequently used. common to all walks of life in Ideas such as: it better than I can” “If the computer will do it, at all” I needn’t understand the principiés*TM “If the computer says so, it must be true”. All of these are untrue. What is true help because lot of work very quickly, is the for arise. Another time when they can adjust misconceptions, “You need a computer to do it it of or the marks of the difficulty. satisfaction and enjoyment of the participants, convenient limit fixed period Racing schedules are frequently called “computer schedules” was When the number of that problems On balance most meetings are best race. is the best. imposed a a their own boats well enough, that skippers have too little eat a For Now that a wider range of radio skipper more in particular see body. is possible to race up to twelve boats per race. give found skippers cannot always it this systems My purpose large number of schedules was published boat racing with entries up to about 36 boats. frequencies fleet but size of entry and one-day meetings a schedule system the basic in a race, to say that the imposes certain choices on the organising the great majority of domestic let me recall of larger national and international meetings. duration of meeting sometimes Firstly, and having it will do a is that a “home computer” can be a lot of and it can be a lot of fun, absolutely non-essential. The commonest type of schedule is the “square schedule” in which two fundamental relationships occur: 1. The number of races run equals 2. The number of boats the numbers in each race equals the number of races for each boat. en RACES 11213)415|16) ii\x|x] €. 2x | O13 FIGURE |, a of boats entered. x x x E\6 X eA S |/2 13) X|x x|x| Xx x 1X1 x|x|_ x x O |/0|X Riu IB x [x |/2|13 om alse P\s 7 [9] 9/0 [x M|4|x 1 |8 718) xix KEK (oe x XX xIxl x LX JI [x |X lk 1x : x x XP it ba wot X x x 14 but We use that a square square the to the boat competes there are a format 13 of in the for any clarity. numbers Notice this race. boats enterest and 4 schedule sake represent as shown in This might be races per boat. at all. I how the pattern 1, where termed a 13 x 4 It have of figure X schedule indicates since is always possible to devise chosen ‘X’s the a small slopes example upwards to here for the right, and when a line of ‘X’s reaches the top it is continued in the next column at the foot. The races competing all that in is in which boat number race number are numbers required to define string of numbers that small each other the is common number of the — to emphasis on perfect pattern depending on have more boats per number of N= B (B- 1) boats 25 x 31 in a Also, the boats sequence. Accordingly, format size: 13 x 4 and the 43)x°7, 57 x 8, so-called perfect schedules. and once only. race lost. per and radio 31 x 6. Since this was a good schedule. therefore “B”, six schedule was Perfect race, When This more schedules such that races per boat, conform to a if “N” is the +1. schedules can be drawn up for Now the a popular perfect schedules has been the entry, x16), same in a long summer’s day, Perfect 5, is set of boat once that we could use, 31 races could reasonably be managed it the the whole pattern is one of a each boat meets frequencies was all Now that 1,2,4,10, 1,2,4,10. 1,2,4,10. This particular example means 1 1 competes are 73 x formats: 9 ete. typical club or open meeting where we want to give the customers eight races each we will not normally have an entry of 57 boat s, nor will we be able to get through 57 races in a day, so we use a non-perf ect schedule. This means that each boat will meet some or all of its competitors more than once. Now this is where the skill of a good race secretary is called for, to arrange these meetings in a reasonable and acceptable way. If Joe Average finds that he races against Fred Hotshot for fice races out of eight, he could be unde rstandly peeved! Also, it is entirely possible to construct a schedule meet at all. In support of the principle distributed as evenly as possible. to space out each available and The only way competitor’s the general to level races At the of fairness, same fairly in which some competitors do not time, evenly, one investigate should be should consider having of activity required to solve the problem is the meetings regard complete for the the need time the meeting. to propose a pattern of boats for race one, and the resulting pattern of meetings. Fortinately, it is not necessary to draw up the schole schedule for this purpose. A little arithmetic juggling with the boat numbers chosen will reveal all. Returning to our 13 x 4 emaple will illustrate the technique. (See figure 2) FINISHED BOX. 10 ¢ 12 L 2 2bo# > jzu 14 7 -——_Y uA “B* COLUMNS Step 1: Write down entrants Step 2: the plus On the next boat numbers for the first race, followed by the number of one. line, write down the difference between each number and the | 2, 6 Sy 4 ow iy wo \* Or eh