The Model Craftsman: Volume 7, Issue 9 – February 1939

NEWS OF THEng eveCn LUsemBbleSd ELL, news does pop alo learn . We came late seasonski W at thiofs the ppers y lad that one “It is quite proper to approach the ign and trim from By C. 0. BROOK problem of sail despoi nt of view an an aerodynamic wledge gained pletely make use of the kno s, providing backbones towercom ginal through wind-tunnel test ori e l era planked hulls. Sev e le factors in the sailn.designs and they certainly show a nic the many variab o consideratio of lines. .. ing the LordHarMeris- setFro to 28th the pretty close to. takMrs m February 18th Sho . es Wm . morial TrophyJersey M.Y.C. was run: National Sportsman’s y. . w. . tak This York Cit South of the Her o day event.h Fio ner-up in thats tw re wit t firs for tie wa , spouse, Bill his to t los ff l-o sai Malacrea, and inl,thethis gives Bill sec- place in New ng division will year the model yachti those who and r eve be bigger than r work on display wish to put thei ing art are taken int exists on the When sailing, a vacuum. Exhaustive leeward side of the sailssails in which tests were made one been placed at pressure gauges hav sail from the various levels on the ws luff to the leach. The ndresultthesholuff that immediately behi on the leethere is a high suction on the ward side and low pressure aft her fart e windward side. A littl the on ptly abru off the suction falls s competitor. Stil y but dynamic mate should contact Tex Foster, 113-13L. Atond, and his tin er scores in this lantic Av., Richmond Hill, he IL.is third prize. Oth y Levine, 54; Ed. N. Y. With his usual energy standing event were: HaAlrr Roller, 39; Frank making this one of the out lay. It disp h mot mam this Kershaw, 52; of ures feat H. 20; , ker Wal nd the leeward side and pressure increase W. atte to 22; nce cha , Wood a good be will we t tha l wel be ht the on the windward side; still farther Mason, 20. It mig Fastern Division Meeting and see m the d fin peak we lest s 1 rel lau aft the suction comes up to amum. look to our pate of our long-haired Big Town. mini a surto ral falls seve ure e press hav e whil will adorning the we Incidently “skipperettes!” “Pressure and suction gradient are es for the guests who attend our pris Atthe to lost And Long Island league race by Eighth Annual Regatta next August, affected by mast interference—the to mast not being streamlined when ves: lantic M.Y.C. in the at Rensselaer, N. Y., in additieonvetl, those Long up ship thre e thos n wee one single heat. Wel is under way (since no sailingeddy race bet y on the heels ofy aeranreal tral sel an Cen es the caus of d) win ver to d Island chaps dogrosta Wea dea Joe els s, trav any skipper or up, and mostly tthego- Dark, M.Y.C., and Joe Patey and ing flow behind the mast and this exve it to tha are in the lead. Lea mer away at ham ter Tex Foster to get the note And since the insertuniong of ale offfem yo ng that the gangli every event. a “ride” in spring had taken Pod pwofor cup (somea n a series of racest an to do), | e abl n bee en’ hav thing I s of conter let l era have received sevded and Tex m) the nee (I dolence. of these y sit ero gen Foster, with all the ng Horn Sta te, is Lo the chaps from more am J ch making me a gift for whiThanks, Tex. ny Ma than grateful. would be futile and More words superfluous. will sail Soren Pederson of Lynn, who lar Popu the of on essi poss off for final Mechanics Trophy. Science Reports On Sails set I have had several letters which After k. me all agog in the past wee from the m gra pro o radi a to g listenin um, | For nce General Electric Scie very inte resta give ker spea heard the ed anc bal e wer ing talk on how ships J etc. ems, syst f shel ous via the vari to m the d aske and um For this e wrot broadcast the data on the aerody- th namics of sails. Mr. Frank V. Smirt- of the Federal and Marine Depa ment sent me back the following, in uyler M.Y.C. Dropped in at the Sch rise. -. . and had quite a happy surp of interest to many the M part, which will bet som of els mod ten There were e of the “dope.” upse as readers, and class in all stages of progress from Af In tends into the luff of the sail. up e clos to fails air the s, other word a dead after passing the mast, creating ow atbel is sure pres the space where dward mospheric value. On the win ents prev flow of uity ntin side, the inco the nst agai air the of ct impa ct dire windward sail. The pressure on the r the air Afte low. e efor ther side is nd the has flowed a few inches beyoflow on ned amli stre a mes assu it mast a up ds buil and both sides of the sail a and side ward wind the pressure on suction on the leeward side. “Many people feel that because mast interference causes high suctitionis adjacent to the edge of the sail (Continued on page 48) Tue MopeL CRAFTSMAN Springfield M. Y. C. Our club had a lot of good sailing during the summer months. We have some beautiful models and their per- formance is excellent, Among the 10-800 models, we boast of are, Zip, Wampum II, Blue Fin, Squanto II, and High Hat, designed by one of our own members, Fred Arens, Leon- ard Street, Agawam, Mass. The names given above represent but half our roster of yachts. This winter members are going to be busy constructing class-A models. We are not, at the time this is writ- ten, certain, whether or not all mem- bers will build in this class, as it is quite difficult to transport the yachts. However, a number of men have already started work on “A” boats. Later in the season we may have some interesting news on the progress of these models. Photograp h by William Moessel Model Yacht Is a Double Ender Charles C. Gay, Secretary, Springfield, Mass. Radical in design and appear- beating sheet xhaustive in which -placed at fror the Fits betweeny wire tracks built 3 eye jockey Pulley to Keep jockey upright — ance, a 50” yacht designed and f P 4 awse a (one each side) if Braine gear slotted to VS by Henry Roosevelt, elbow quadrant take lock when beating Long Bingel, of Island, has a double-ended hull. The deck, as shown in the photograph above, is scow-shaped, being rounded at both bow and stern. Concerning his craft, Mr. Bingel writes, “The boat was not made from any plans, as I do not make my boats that way. It is a development double-ender, which of my from my viewpoint is the best of all types dacke pi vots Bent arm soldered to wire track (one each side) wire track quide for jockey soldered I have seen. As for the bow, I have an idea that the flared bow here would keep her nose up. ‘As I have said, it is a combination double -ender under | end view of hawse but with practice I think it will Belgrave Attachment for Skiff Sailing 7 Hs attachment is offered to model s below at- windward yachtsmen as a result of a sugges: tion I inserted in my monthly article recently to yachtsmen -windward ter the air seyond the ied flow on puilds up a «side and a e. at use igh suction ye sail it is > 48) RAFTSMAN the effect that model should “swap” ideas for new gadgets, sail plans, rigs, etc. The editor of this magazine has offered to publish any such ideas that are suit- able, in order to give them wider circulation among enthusiasts, so I am starting the ball rolling with this sketch. If you’ve come across anything that will help other yachtsmen, send it along, either to me. or directly to MoDEL Craftsman. Before long, this department will be a forum for technical data as well February, 1939 as a medium turn out O.K.” for publishing the results of regattas. The attachment is a means, espe- cially designed to make skiff sailing more simple so far as making adjustments are concerned while under way. By this hook-up there are but two sheets used, the jib and main, and the lock. Further time can be saved by run- ning the jib-sheet through the mast and attaching it to the main-sheet bowser, but in this case the bowser must move aft toward the clew out- haul; with the jib sheet also attached to the bowser on the jib club, any adjustment can sired, be made that is de- the primary thought being water, and scow on deck. So far it has been very tricky to sail, to adjust the jib to main at their best relative position, and then, simply hauling on the main sheet also hauls the jib into place. This means but two operations to lock the rudder and set the sails for beating, and unlocking the rudder and setting the sails for running or reaching. The beating sheet is never detached but remains hooked up at all times. When the “jockey” slides over to either side, the pressure caused by the pull on the sail, operates the Braine Gear, except when locked, when the gear is inactive as in beating. Any adjustment can be obtained by (Continued on page 64) Retail Dealers DIRECTORY Model Railroad Supplies 0-00-HO Kits and Supplies BIG RESULTS Most complete stock in St. Louis. Use a classified ad in these columns to sell kits, tools and materials to the model builder and hobbyist. Low im cost, a Models built to order. Meet your fellow model builders at MIDWEST HOBBY SHOP classified ad enables the small manufac- St. Louis, Mo. turer or distributor to obtain complete at the rate of 12c a word; minimum 10 words; payable in advance. Count each initial as one word. Name and address must be included.- Forms for the March issue close Jan. 30. Send your adver- Headquarters for model builders in the tisement with remittance to: Nation’s Capital – Ships shop” with us. – Airplane West 42 St. 305 Atlantic Ave., Boston, Retail Dealers’ Directory Educational, Profitable. Wright Motor Works, 3256-B Lake Park Ave., Chicago. Precision engines of the country know that you, handle will reputable GOLD COINS WANTED, 40% to 50% premium. A. French, Route 1, Troy, N. Y. YOU too, quickly merchandise—and give good service. with Copy for the CAN and work BOOKLET March issue must reach us by JanuWrite for the amazingly ary 30th. INCREASE easily and at furnish explains YOUR home. all how We INCOME— supply materials. we bring you you REE well- paying employment in your own home. Write today. Wentworth Pictorial Co., Dept. 212, Hamilton, Ont. low rates. BELGRAVE ATTACHMENT (Continued from page 37) shifting the wire hooks. The nearer to the center of the gear the hooks are placed the greater amount of rudder is obtained. This is because the forward edge of the steering gear being curved, and the elbow quadrant being straight, greater leverage is obtained as the hooks are moved toward the center. ¥% While the gear may seem difficult to make, it is very simple to construct from the regular hawse, and makes for a cleaner deck arrangement. Mr. Belgrave, a member of the Deeper Hudson MLY.C., is making a pair of Complete kit and plans for four foot 1” scale Colonial Model. Details 3c. Catalog of doors, windows, millwork and model railroad buildings 15e. Min-Scale Millworks, Mount Joy, Pa. of HAND LETTERING — Darby, Information on terial 10c coin. Verne D. Langworthy, Grove Avenue, Westerly, Rhode Island. ¥%” LIVE Steam 21 Locomotive as Hudson. Drawings and Boiler Ma- FOR QUICK SALE—Almost new Lionel *O” Gauge Equipment. Wide radius track. Owner taking traveling position. Complete outfits 766W, 755W, 764W. Extra equipment such as signals, switches, cars, controls, etc. Send selfaddressed stamped envelope for detailed descrip- construction Guaranteed condition. sets. CHEERIO II 1937, No. 3 with drawing-room tion mail and baggage car. dition and running order. sories, plans. Fisher, 1002-4 Etowah Ave., sails, SPECIAL: fittings, ship acces- deadeyes and olocks 2c each. Send 3c stamp for list. W. G. Bithell, 159 Falcon St., E., Boston, Mass. SHIP MODEL—FEarly American. Supply Box 222, MODEL Huntington, N. RAILRCAD car and combinaIn very good con- Y. New Jersey. ular models and separate yacht United J. Gordon Thomson, fittings, 20c. A. J. Royal Oak, Mic model cars, MODEL RAILROADS AND SUPPLIES Gauge, Scale and Tinplate. Champion Locomotives, Pa. National Marblehead Champion, $1.50, will include a deck layout free. Our 40 page illus- trated catalog of all Motor Co., FOR SALE—Beggs miniature steam locomotive HEADQUARTERS FOR ship and yacht model spinnakers, guaranteed. boats, planes, $2.00 each plus freightage. Scenery to order. Expert work. Cannon Signs, tions. SPECIAL: nip H.P. motors, 60 cycle, 1 phase, Company, High Point, North Carolina. MODEL BOATS AND SHIPS sails, ad- stamped, Send description. Pruett W. 43 Place, Los SCALE Hopper Kits, aluminum $2.00. Photos for dime. Tinplate trades accepted. Rochester te) Exchange, 2261 Dewey Ave., Rochester, DOLL HOUSES 85 $2.00. envelope for Works, 1828 LETTERING pangler, Pa. Why not join them listing here. and let the hobbyists in your section Fascinating, Details, drawing 10c. 110 volt, 3600 r.p.m., like new, Mink bred females, April delivery. Dime for eneral information. Lomman’s Fur Farm, has Mass. Build miniature gasoline motors. BUSINESS OPPORTUNITIES Our . Complete parts kit for 1.2 ing or pleasure. H.P. motor, $27.50, or can be purchased one $8.25. Send check to Erie Electric 120 Church St., Buffalo, N. Y 1410-L Street N.W. Retail Dealbeen growing steadily. ers throughout the country have gotten fine cash results from their Howard Co., B-2417 Build your own for fish- OUTBOARD Motor. BARGAIN New York City SUPERIOR LOCK AND ELECTRIC CO. efunded. North Ashland, Chicago. Angeles. Classified Dept. 110 Supplies, 25c. dressed Novelty THE MODEL CRAFTSMAN Drop in and ‘‘talk CATALOGUE of over 40 engines—Castings— part at a time. A guaranteed product. Send 10c for catalogue and price list. Outboard, Classified Advertisements may be placed WASHINGTON, D. C. Railroads without field model the of coverage straining the budget. All tke better known lines. MOTORS & ENGINES LITTLE ADS BRING the leading manufacturers Small drills, taps, dies and screws. Figures and 934 Academy Ave. | ADVERTISING ee 1 ST. LOUIS, MO. scenic effects. a7 Classified (Continued from page 6&3) By 7. 3E ee ‘ae merchant- man, 28” long, completely and correctly rigged. Captain A. C. Stott, U.S.N.. 90 Church Street, New York. illustrated catalog Railroad now Shop, Supplies. HO and O Big new 24 page ready, Dept. 10c MC, postpaid. Dunellen, ; “O” GAUGE LIVE STEAM TIVES (Bassett-Lowke). Now LOCOMOstocked in America. 4-4-0, 4-6-0 and Mogul Types available. Catalog 15c._ P. W. Maurer, Importer, 80 South 144” run, 1935 20th freight $5.00. E. 70 St.. Irvington, N. T. cars, body kits, $1.00; ready to List 3c. Owl Model Train Co. Street, Cleveland, Ohio. these attachments for both jib and MINIATURE ROAT and airplane accessories. re Sc. Selley, 1371 Gates, Brooklyn, FOR SALE—O gauge equipment, track, two engines, 10 freight cars. Box 95, Demarest, N. J. from cord, will be eliminated almost WANTED—Boat models—send Price, pictures. John Dawson, Station St., Aliquippa, Pa. LATHE WORK entirely. Such an arrangement on deck makes for a neat appearance and simple adjustment without altering the effectiveness of the Braine gear. The beating guy can be used in the same manner as heretofore by placing the guy quadrant hook into the arm of the lever on the elbow quadrant, and detaching the quadrant hook not in use. To gain a greater amount of leverage on the steering gear, the arm on the “elbow” can be cut at a sharper angle. C. O. Brook. 64 ——_—= LATHE WORK. Time and material. castings. Model Machinist, 4115 73rd Jackson Heights, Long Island. AGENTS Big Money selling carded merchandise in this territory. Repeat items build repeat business. Webster Co.. 812 Barry Ave., Chicago, IIL MACHINERY, TOOLS & SUPPLIES ATTENTION! Experimenters, craftsmen, inventors: You need this giant ten pound hardware kit. ers, gears, Big box springs, full of rivets, screws, engraves brackets, all FORMULAS Formulas—All kinds. Guaranteed. free. KEMICO, 76, Park Ridge, IIl. Catalog MISCELLANEOUS nuts, washetc. Over 1,000 parts—price $1.49—worth $7.50. Guaranteed satisfaction. Manufacturers Screw, 225 West Illinois. Chicago. ELECTRIC pen, Light Street, an main, so that the use of lines made metals, Hudson Bros., East Syracuse, N. Y. dollar. BACK ISSUES of all MODEL CRAFTS.MAN and others. Mr. Birge, Hinsdale, Tl. BUILD power Scooters, Midget Cars. We sup- ply tires, wheels, motors. 10c for plans, etc. Lake, Chicago. Lowest prices. Send Bild-Ur-Own Devices, 5240 When writing to advertisers please mention MopEL CRAFTSMAN for February, 1939 wrrrreTyre pmoTrarrraercr FA