- Title. Author. Summary
- Title. Author. Summary
- Title. Author. Summary
- Title. Author. Summary
MODELYACHTING 19 MONTHLY 46 } Th `\- – b S \. OFFICIAL JOURNAL OF THE MODEL YACHT BAclNG A5sociATloN oF AnERlcA 25 CENTS a COPY DECEMBER 1946 . 2.00 a YEAR MODEL YACHT RACING 1921 -. OF AMERICA The object of this Association is to chcourag© and promote the designing, building, and racing of model sailing yachts, and to establish unifomi rules and regulations for the conduct of the !pert. , Model yacht clubs in the United States I possessions having a roster of not less an ten mchbers are eligible for menership in the M. Y. R. A. A. Annual dues are ten dollars. Abplicaion8 for membership shall be made in riting to the National Seci.etary, and hall be Signed by the= Commodoie and eerctary of the applicant ch}b, stating e nnmb6r of members -the applicant lub has, and acconip-a-rii-ed—b-y ~arrf-€;–o-i . 19 ten dollars, as dues for the calond.r yen to be returned if the application is rep jcoth A model yacht Competing in any National,_ ,JEivisional or Invitation Regatta must be registered in the M. Y. R. A. A. Member clubs are grouped in divisions, the Eastern, Mid-western, and Pacific, and are units forming the H. Y. R. A. A. Each division has its o”-n regional officers and divisional championship races. The National A8sociation has direct charge of tbe National Championships.`.` arid ~other Natiori&l Races, anr¥ promt;1’~’` a.a+.e`S P.ules and Bet;ulation8 for the con- duct of the sport. M®DEL’ YACHT RACING ASS®GBATE®N ®F AMER!€A oFFICIAErffiBLlcATloNS Sailing Rules (Pond) and General Rules …… 20c each. Lots of ten or more, 18c Sailing Rules (Sfe{#) . 10c each. Lots of ten or more s€ RI-Class Rating Rules (Marblehead 50-800) ….. idt each. Lots of ten or more, _se X-Class Rating Rules (1000 8q. in. a.A.) ……. 10c each, Lots of ten or more, S€` Standard St.arting Schedules ..-……..-……. 20c each. Lots of ten or more, 18c Measurement Certific.ate Blanks..„ ……-……….. „…A-Class, 6-M alas-s, $1.75 Per htl RI. Y. R. A. A. R. Rubber Stamp (to record S.A.) ……………… 50c each, pol Make check or M.O. payable to W’. F. POST, Treasurer, M. Y. R. A. A. 8054 Coleridg. Roes, `Clevedand Heights, 18, Ohio FiNEST RI®DEL YACHT SAILS (Available in tk€ Strtns) FITTINGS, SPARS AND ACCESSORIES . Made to Order Designs by H. E. riichardson, including “Yankee ll”, “Blue chip” and “Redskin” W. G. BITHE[1 9 Falcon St., E. Boston, Mass. JAREES BLISS & CO., Imt. 220 State street BOBton, Mars. Tel. Laf. 4141 Supplies for the Model Yachtsmn Fitting. Planl Paint MODEL YACHTING MONTHLY VOL. II I H E DECEMBER,1946 D E S I G H O F NO.22 M OI) E L YA a H I S A I L S By A. M. ELALliANTYRE ::::a::i:::!:g:::::;:E#::;::w:::i but poriodlo faghlong ln Balls i]eom to Come and go, and each ln turn lEi 8:i::£ta:h:£:e!::: y:±thH:a:ta¥::::: that “the sallg Should- be Butted to the hull they have to drive”, but the why or wherefoI`e 18, omlttod. “Ba,lahoe” has been boosted aB a PrerequlBite of a hull,and most syg- t:gBaff :¥h:::3:: ::°edp f|#to:£er36 made to act up badly when an impr.oper Ball-plan i8 u8od to drive lt. So my ::3:::i:::::::::; :::i , i:;i:::O:1:: i.:y Second postulate ls that “For :ggaE±¥::£ui±L:a::±%;NEc:%E±#:::„.1B #frtw:#8ie:ntgtifg±n8unaf88:-]o±8t£: Bail. AB the sallB are Bet at vary- :hng :¥u±:a g::£a#; a;:Sd:€v:Ee]£oa:. direction at r`ight angles to the sails, were lt not that the water 1g aotlng on tbe later.al plane of the yacht, 1n a gimllar ndnner to the ®ind acting on the galls, Bo that she moves fol’ward, cl.ab-fashion, mostly forward, but with leeway. The amount of pr®Bsur’e that the wind exer’tB on a yacht Bailing “on the wind” can be analyzed into forwal.d and sldo dlrco- ;:g:i;::¥:V£2r:i:rf::£:dt;#a!b± for Bma.1ler yaohtB, conglderably leBa. This Brnall amount of forml`d drive I`equlroo that all paraBiticaLl regl®tanoeE], such ag thick ma5tB, heavy :Ea:ng#::i::3:±§:m!#:::fro:P°:::;::; :i:e:fihtr::j:::in::::a:a;h:oea5:: : :;#:£i:::.ed:i:::::L¥u::::::i:::: to be obtained. :3::£rE!a;i:th!=ya;§,::e:Lx:h:La:::: g::::€t:::1::8::i::e°:r:::Ffndgi:ardt. the amounts of adjustp.ents are Bt`rlctly linited, go that it 18 nec- S::::g|etof.Fa!:et::e:::: 83:E::::: met with on the pond most used, and this aooountB ln 9ome degr’ee for the non-BuooegB of vlsitorB aB against tbo “home gklpperB”, a8 boats ad|us- ::dud: ° #8h:L¥:::::: t%iaL¥a|:a:::_ :I:::v::a::a¥xe8:t::::::By::g:iBoa# their restrictlonB, produce the koeneBt and falrost Competition. Tho flHd, 6ind to a lessor degree, the “X-clasBt’, by I.oEovlng most of the restr.iotlonB of the -nA-olaB8”, PermltB variatlone of Bails, rig and tz.1m to ault quite vat.led sailing The sketches on Plate I indicate eBt effioienoy ln a, Bail-plan; flrEit the Jib, and sooond, the peak of tb® malnE]a.Il. Thos6 get the most favol.able itind air.eotion8 and alE}o form ::::-:::;i:i.::8!!::ik!::::;i:;di% preBBul.a when Balllng “on the wind”, and this explalnB the gI.eater Off l- £:€8°g ::ngg:G¥e::::: ‘ e!::a¥£:nthfgt,, 8ailB, The almost univer.gal use of vane Bteerlng has brought a rash of ya.ohts with their rigs away formr.a g:c=:ik°inprgev:E:t?:ne=:::i::.f;£ge calls for. a dlffel’ent plo,oonent of the later.al plane and beam ln de- oondltlong . ::8E±g8o*::I:i #e:rm*±¥ego::gth±: power of the wi]rd to FORCE itself AGAINST the wind. The trick 1g per- rule The hardest action of the wind to vlguallzo 18 how a yacht can use the f ormed by uBlng the peoullarity of llquld.a, and ga8BeB,by whloh they ex- ert pr.es8ure agalnBt gurfacoe that :!:yB¥;:.:?e:. #atr:f5tp:¥:3:e :3 ifag£:r::iE:i;::;?:on?::i:i!’i±;::i#i’ for hei driven hull wl gEtao:in::i,,fu::-:::#g Ball-Plan. By uslri.g a large lib, the met 18 located well aft ln the Sail-plan. One of the worst objeotlons to the v+– YACHT SAILS THESoURCEOFSAILPoWERWIND PLATE 1 NORMAL wttJD OpEN wAiE.a. sAiuHG WIND FLOWING OVER ArtJ OBST”CTION ~oTE GL.AT.L “~D POW-JL AT nAr.TltE+® HLEicwiT. GE~Ee.AL coNslDEeATior.s “::;i:’:ONE.M’o-#.#=,%=*`~OnTDT°~r*.N^==.a.Fs=#F oH `^/l~f>`^/,LELO flD£, WWD ^Crr> ^r Liq I.T ^~eliES ii> .SufLF;^CF OF jAILs LfqAOOLrss ciF^*>q.t AT wwiE.+i `^iiHO 5T`e+.<-i 5^ILs. To eE Most I.FF`c(E^lT wi~D sL.ovlo Flew SMooTWLT OVLI S^`ts-^N7 EOOIEL€ I-.+^T Occ®e. ^R£ H^iLM F=uL. eEL..`Li> 9^iLs a-edie ~®RJ Df2.vE TWA~ FLAT ±^`LS, C.MNCE OF DIRECTION OF WIND LEAVING oR ApaoAciiiN6 THE Lj`ND cEEATEs pfabLEAls C)F TRIM. IFA boAT SAILl~6 FEE.i COMESIO l±JL 9HOE£ MAKE A SMALL C®A~GE TO Tg.IM AND SET HllWELL OFF 9HOR£ . IF^®O^T 15 9^ILE.D CLOSE-HAULE.D lie.E p rlERAWAy Fflc>M wiNDw^R.D swc>e.IL. PLAN VIEW iHoWINa row SAILS D|VIDE WE WINDA~D C~SL IT TO blot |PIO T…Jlb^t.O 01) LiNs^u. w`” DiACRAM SHOw”O CREAIER [FFiaENcy a*D a^r ecr«:E^l oF ilppER PART oF M^iNs^iLacHANGEs OF App^e.LhiT wlND OiRICTioNs wiTH wlND ot. cat•aaT SL”L. vli~Oc)N M^wS*IL vyl” £HANCEs oF WiND SpE.EDS ^T DiFFEe£^iT OFWIND HEicHTs Ae.ch/I stiaj:Ace oF W^TLR. PASSINC CWER SAILS AIN9. B^uJLNTy N I. MODEL YACHT SAILS ` SAILS W`TH AR.EA OF PLATE A IG68 S9lNCHES FOR.-A: boATS L I S TE C) LW.|. ItJ ‘~Crfes t.a PEWALm£S ) 59gr2i+ a)53 3,52 4-) 51. 5)50 ‘5 L^If I htode w A.oif .a.;|s ALSo CeJ;4T[S “cGeJI CA,P bETWEc^/ JIB A+iD miw~jAHL . 5Aili5 SWouiJ} ®t Well ®Eu.eo Faai Lic”T Wi~DS ^~D FiAT Foal wE^uy SAlls FOR “M” CLASS BOATS ® ® © COOI} ^t+ W.NO OESICW aiic suiT^bLt. foR a 00 0 bLLEJZL BOO SQ.INCHES IN AR.EA u.lNC: S^HE W^INS^.l I I usto wri.-6LloiuG fuc C.000 COIL STIFF t4ulLS AS © .ur LowERot. M^5T ” LlcHT To ..ooe.^T€` P”tTS THE M^ST TO.i wlTw lawtilji. Tt+is I s ser wt.iL ^H til® I.u sT E^O`r WE^Vy W`~o5. wlNDs. GooD Foe. Ht^v`egL wlNDs NLPT£S. IN LIC;HT WtND5 SAILS MuST MAKE YAC+`TS LiAN ENOucft SOTHAT SAILS TAKE A C:OOD SHAPE. 6y CRAV`Ty. TAKING THE. Full 60°/a ALLOWANCE SPACE Foe. A LAtlGE. Splr`~^tcE.R.. iF sit wiTn AIRS LARGE cAp ATMAST FOQ` J(a L+OIST HrlGH GIVES I lbs L`t^, I.WL. Bee-, WL 8 ..-. Dr.|I. Dit*ac .-.- I * I… •ng*.. ir *a.e*1he.i. .i*es -.l€be \.I I..d balku. ES]#t6T.4S..5F3±t.:r:,E.e8S.:f7&]Sb:s.TF2: lbs) SA 1800. size Sail plan Full size lines &hd 1/8 NLCL^SS. ^]1 full .il. ]il.. UMPTULIPS, T. W. Houk, De.. SF: S:BT:WI.. 50.25:60.0 :0.20 :8.9:10.92. 7.6 Iba. (12.6) SA 799 ……………… S8.00 UNKISS, Ted ThorB.n .nd A. R. Lei].’3:D]®8S..75S]I::S(:18550).asi5°7.§8.:?…?,02:.9d8 RGARET, James Fulton, Dos. Fas F:(i82T7:6R):s6A°:#6?g?.„.::.:.6…?…?.?.i,§.76§ 36-INCH sHARplE. s-cIAss. Oflcial .¥n:yttoAnDp::The:¥::=::.:S.¥:¥:¥¥,.8:o%. c^LIFORNI^ sLIDINc RIG. Full adz.. fo`r M-class ………………. „ ……………. |1.00 L^SSEL SELF-T^CKIMC VANE. Fhu 11,…”………””……”…….””..”..”…,1.00 i+FOOT SX=]FF. C. Slnprty hall.O® OVER, P.A. Fisko, DeL \CF:IS:WL T: 50:48! 9.2:8.9: 1’1.19.5 lbs. (13.5) €§fi-‘7T9-7-~..-..’..:.`.T..-.i:.-..-…~..-.:„T.:…:..:.-.:.-…:iii:66 VENTURE, H. H. How®1er, Dos. F&S: 5?1:°Et8:.2YFp:a.B(Ti.2R5:)58i%:o..:.?.:$2°..6o: BROOM V. J. Selmer-Larsen, Dos: Mod. WL: 8: 50: 50: 9.6 9.4: 9.6: 22 ) SA 798 …. „ …. „ …… „ ……. $2.00 Selmer-I.arsen, Des. Doublein, easy to build. Mod`. [9.7x9x9.2. 161bs. (9.5) SIX METER CLASS. CALEDONIA R. D. Matheson & Alymer Pratt` Des. F&S: WL-BT: ,59. 7x38xl2xll. 2×8.8. 22.6 lbs. (15..6) SA 1311. Full size lines, yS size sail-plan …. $2.00 3E:oF2i5xg.|xJ|.1.¥xa#,xgp|e;:Eg.£.5Yb¥ (19.5) SA 1185. % size lines.„..„.$2.0 FALCON, C. J. Pratt, Des. F&S. WI.BT: 62.5x40xll.25xl0.7×9.12. 25.25 ]bs. (18). SA 1212. % size lines.„ ……. $2.00 •“wiy,..-..-……….”………….$2.00 lDYLE WYLDE HOBBY SHOP T77:54: 10:6:12.3: 12. SA 997.5 Full size„ …. $2.00 i+i#.65F;E:’iapTz:¥¥::a)i.yL ..L9df£5n.stE;.cTfo:,zp.]a#.T.¥.,$3fE# ?SIrEf:.#L+Feir|*5E?n±8Pie?..H}6&.. 26 Iba. (17.5) SA 995! Full Siz;e $2.00 64p5h-5:e86r.&%8gay’tAlRb.&nR;,SNTt+;n MALCOLM H. R0BERTSON, Prop. We have `.Knockrdown” Kits for builders of Model Yachts Wrifu |or dstode ` A:LHPLBA:EAR:TBB + “)[rESAIPB TOYS MODEL YACHTS end FITTINGS •’ ` ,. II sE=¥—`-£3=,-cT-t-i,’.—: :f3ifii+`if-i .I_ -_ ;::. ,=’.`=`L-. , -‘,_+ -=-. . ,i¥igg3Tat:.:-a, :–. -‘J.i,:,.¥`.i£:- i.-,: , -,\` I-.–,f ‘ – . , –`..i rr +MODELYACHTFINS:•¥A.IFHERi` -t=+•.c&¥`Y} `,i:apt a. ;:-+ its,`¥S*±£-+i±¥`+; YACHT MODELS :ii{!i,:Eigo§:8 `SAILING SHIP [Roooy2a]Etooawk:hM:cvhe.. c:ii§pE:irfui]s i; ) `is i Illustrated Catalogue 25c i:., *gi*f<+:Fasa-r5t'-L+S ` F¥tfinchgs?%¥i!B and plans ` M°dKeitsAfrnpdlane Supplica Trophy I€oadqu.rters `+i ' *!it\ TEX FOSTER105-14JamaicaAve.,Richm6ndHil 18,N. Y.Fi.her.&Mar]neModel .` Mode|f: chting ICharlesHeisler234StateStreL`tAlbany,N.Y.-.:t:fe_LYEEREFS=. + ++`a# 87 `{|ke:`.-`s,j` i:,-, !if Kits and Fitting.¥i:ArcheryEquipment\--_0Eiqf I I se¥,, A-`,' :~BOATINe HELps . . . in book foflin `The experience of experts can be valuable to new sailors an old-timers alike. All books on boating are available from YACHTING'S Book Department. May we suggest: Elements of Yacht Design, by Norman L. Skene. Yacht Designing and Planning, by H.I. Chapelle. American ship Models, by v. R. Grimwcod. Also -A 12-months `subscription to YACHTING $4.00 $4.75 $6.00 $4.00 YACHTING PuBLISHING CORPORATION 205 East 42nd street New York 17, N. Y.` iI
