- Title. Author. Summary
topeing 7180 STRICTLYSAUL By ROD CARR TECHNOLOGY AND CLASS STABILITY In model yacht racing, a8 in every ther compettivesper, the participants Seek to gain a pertormance advantage. {his can be through carelul faiing and {inihing of the hull underbody ad is appendages. It can also be through intensive ellos in sal cut set, and te, for lengthy practice sessions to hone Seca si and boat handing on ‘deep down in every skipper’ heatt there lies the belie that somewhere there isa gadget or 2 super-something hhecan buy wich wilgive im that edge ver the let. Olten, developments in ‘model yachts ate rellections af present twends In the big boats we tead about has een towoidthem, bute practie Banned ‘nly specific materia are allowed, such for €C/ spars in Sswood orsluminum are coupled with tolerances “approved Shape, Should some new material be put board’s boat, and should t be blamed forthe boat’s winning ways, the exit wie Ry moon an bacon ing the weight of components means thi a large percentage of the tort weight ends up inthe Keel balls, The designations with the addition of the “American 96/00 clss. i allhese cases, feneral size, shape, and-maximum Sliomable sail aren are. controled either formule atin the A’sand 10-8) fr by maximum dimensions (as In the S/o and Mt classes) The only prohi tion on material i a general one in which AMIYA outlawed mercury and Uranium. These were banned due tothe ‘hilethe chips, lead, snddacron ly. The then can be resolved with some Simple to bul you don’ want yeartokeepup.then you Betintoa one-desgn. fear by 2 vote of the indignant lass design. The former are the well-known international clases of Ar My and 90:8 |stayinthe game the more Shew 30/800 every {erring them into the model yachting rena inthis column intendtoexplore the resulting. pressure that such tech: nology can put on existing cass stably {les can respond, The AMYRA presently provides for 2 vatetes of cates: Formula and one ‘the longer polarized I find my view. There ino Sch thing 253 patsy controlled cas Ether everything s controlled andthe boats areal essentially alite,or onesets prescriptions ‘These developments are taking more and mare modern materials and trans nd riety ouch upon ways that clas ae ‘embers ‘esult In the ane-desigms, decreas. a stlfer boat which presents ‘more salto the wind and shouldextact ‘move poser Bostive tone. By this mean that the Should endeavor to follow the lead of the fulksized Etchells 22 loss Th lass Spells out precisely whats allowed on plece by piece The philosophy theta, IL” Some regulations inthe €C/12 class havethistone. The one hich prescribes ow many and whieh functions the fadio may control is 2 good example. don’t have Newport 12or Sling get into a ormula ead last. both wars One simply cannot have it ‘What prompted thisarticle wasalistof ‘modern technology” that hasbeen applied to our pot They seem 10 al tons category. The former must be dealt attr may twa on a Cas evel while ‘retch the general AMYA definitions of ‘uhat 3 ratio controled model yacht MATERIALS EARBON FIBER: tapered Now aaable feet spar 8 round long. + Abo ted os unidiectona stiffeners in hull inyups to produce funcional hulls at titan es “ITANIUM: A metal being used or ib clubs and main booms. ight and ston, for masthead Suhichmakes ta eandidate Tings and chain plates. COMPOSITES: These ate innumer: 3 layer materials which in able- ve seen 31/32 14 x 2tinch stip, ll be ser than heavy fiberglass arowahatts and have 1/3 the weight. “TUNGSTEN: Has appeared in keel bulbs. This metal weighs 19.3 grams/cc he 7 4 ied. Tt mean BT ‘ame weight bulb will oly occupy possibilty of environmental or health Many have tions yet thi allows 2channe skippers ofthe volume of the lead one. Tse ball Wwill have a smaller frontal ares and wetted surlace, but will exert the same ‘metals were the only ones mentioned SM ACER being won yet by a third Continued on page 104 Samage which might result from thei release 10 the environment. These two 50 chafed at only 3 R/C func fobe very competitive: mot awareof R/C MODEL BUILDER FREE he glue dries nd ting can take FLiHiT eA “WINBING oF throttled Cox HBOKS 040/051 land Ross! 15 engines, BALSA students ase thi, method ane agree | STRIPPERS parts & quality recing products. For detaliag Information, ‘end 18. stamp tr Kustom Kraftsmanship P.O. Box 2699 Laguna Hills, CA 92653 (714) 830-5162 up with an unusual fselage arrange: iment and’s type of wing eopstction that seqive any bs tobe cut ou Taw one ofthese ty athe 179 Nats Sfewol hem hivesurvved. you think the mode cendin your youcanidentiy {nity fo the R/C MB office and see ‘you’ve wom the fee subscrptan, COVERING (rte WHITE GLUE) rom the Phoeni. Model Apne Clu mensterter A idberg, eae Tae covering normally done sing dope sean aohesve, The ry Convent and ales ew problems {here sre sone cite methods though {nd the use of 50/50 mix of mite ge nd water’s worth atry. tha ted ths ‘method ance belore’. ux #0 could The major diference, comparing ihsmethod wih dope, hihat theater” {ingen time” Wether soaks in guicly sere, so ater looking Aheough 2 few {iter thin ean be dove with dope ands Covering Job can be completed in a thing sort of diferent! © Shower fie, Thesecret stoputscoatol ‘wsterple all sound the perimeter of the arch tobe covered, tnd hen to get hme. ‘Afer using sal ruth Sheeted constuction and Monakote coilthe aries aas’s linger ‘Sutnbuteshe moture evenly around the ‘seconds beter imeslmait desptevhe ‘enough, this quality allows workin ge this helps to ensuretewer gaps Sn6’iumpe: Because ighter vance ot ‘have lave aot of strength when wet plan on placing the paper correctly the Fist time. Using Topapese tasue, you probably wilnot be abe tot of sige Siveting up the place wih dope fumes tearing. However. ijt sbout an {Siig ested Secsndhouooinach protien We but maint too impressed with the racic the reals ae gan a good enough Fecommend that orhers iy poe too” fost “because the tssue.prks up the water and-expands just ike docs when WEST’ ee ‘A new conceptih the promotion licopter tying. ‘and support. af RC. pettors on fullsize glides every com ‘AU anyratecthe thickness of the the’ ordinates are not the customary 8 ‘Soling =» Continued tom page 50 righting moment. (OPERATIONS TELEMETRY: tn this yim the oat srspeed through the mater, The e ade rset soremoda {Othe sipper where tie converted 3 tone in a car plug, He pels the dec tom he wihes tos then rms sa aod ‘des Yo acieve maim sped Such asytem by his esr plug ‘reported ‘neat information litera tough the 108 R/C MODEL BUILDER R/C HELICOPTER_SALE SALE = $499,95 GRAUPNER BELL 476 Includes: Mechanics ‘3 HB 25 Engine at = 498.00 Seen SALE = $275.00 LIMITED QUANTITIES ate slowly catching on asinterest, ‘events Ris ow spread tothe youngsters inthe merchandise lottery in which sbout ory people received prize Ere ‘semble all the trophies, Al wophies 1s Pilly… Continued from page 47 required. a {uch a Monokote, Although the lead Provided by illeuble bamboo paper The Min Philly” should make agreat the untunding pase ols twacchannet Cox Sanwa rai set mt won by Chit Shea Clik who hs been arealherofying free models iromhinwhectchar might fighi beable rovelars bi wun a black box! To wrap things up, the President then awarded commemorative plagues the SAM offers who have unelshly Lin SAM during 1909 In adion, fered a specs plaque tor Hisham wasawarded Few Contest Manager ale 1979, like SANC Champronships. Nothing ring he hard-working amin Thought we’d never get around (0 ther huh? Well tis time we Rave the ompicte dope gn the model and en fie’ ured. fon, Based on the models that You can be guided a4 10 which Competitive mode! you would want {0 Plug Sparks… Continued trom poe 41 Sees aagencn one es stay NOVEMBER 1979 105,
