Model Builder: April 1975

Q BUILDS Beilin (5, yucarvultve’ aul) By e@ ROD CARR Let me start this month by recom- stalled deck beams of 1/4 x 3/8 pine, as for the racing skipper. This is a paper- shown back written by Jack H. Feller, Jr., published by Spyglass Catalog Co., of 2415 Webster, Alameda, Ca. This little gem takes the NAYRU Rules and puts them in the order in which you will meet them when rounding the course. There is cross-indexing by subject and rule number. The drawings are clear, The mast block is pine, 3/4 inch wide, 4 incheslong, and 3/8 inch thick. Underneath it, a 1/4 inch square mast compression strut transfers the mast load to with only a couple of typographical er- rors. It is called, THE YACHT RACING RULES INTERPRETED, and goes for $3.95. | highly recommend it as an addition to your library. Meanwhile, back at the filing cabinet, a flurry of early spring housecleaning turned up a picture which | have been looking for for over a year. Photo No. 1 is of 50/800 No. 18. This is the grand- Photo No. 1: Chet Purdy’s No. 18, the grand- father to our Yankee. Note high aspect ratio of sails. Returning to the YANKEE, we in- mending yet another excellent reference father of our presently, under construction YANKEE. You can see by the shadow of the sheer towards the bow, that this design had already tended toward the full mid-body with sharp bow that we have in the YANKEE. I’ve now inStigated a new method for filing my negatives and hope to avoid such embar- assing losses in the future. in the hull. the accompanying diagram. | usually put a small 1 inch square piece of 1/8 ply under the strut to distribute the load. The jib block is of the same material as the main block, and is 11 inches long. Its after end is supported by a vertical strut much the same as the mast, though this strut will be in tension (i.e., an upward pul! from the jibstay), so bed it well in thickened resin where it meets the hull. As you can see in Photo No. 2., we put screw eyes in the after R/C beams to act as termination points for the main and jib sheets. Notice that each sheet terminates in a loop, the size of which is controlled by a flat bowser. This bowser can be reached through the R/C hatch, so that the close-hauled posi- tion of your sails with the winch closehauled, can be adjusted easily. The main sheet runs forward through the winch arm, then aft to a sheet exil-guide (Fisher No. 566, $.35) which leads the sheet through the deck. The jib sheet leads forward (under the starboard winch arm) to an eye screwed in a pine block which is resined to the hull, then leads aft to the starboard winch arm, through the arm, and runs forward to yet another eye in a block (near the centerline of the boat and under the for- ward sheet exit guide), thence upwards through the sheet exit guide and out onto the foredeck. Photo No. 3: Deck planking completed and ready for trimming. 52 One problem that exists with this boat is access to the area forward of the MODEL BUILDER Photo No. 4: Hatch cover frame held around inner coaming by rubber band, with “baggie” between them to prevent sticking. FIG. 1 Photo No. 5: Outer coaming in place around “‘baggie”-covered hatch cover. Confused? 40-7/8″ ia > 34-1/8” > switch. By adjusting the position of the switches, you will be able to turn your winch on by a very slight movement of the transmitter stick. You will also be able to run your winch using finger pressure on the wires below the servo arm, without having to turn your radio on. This is very handy if you want to make adjustments while someone else is using your frequency at a regatta. The microswitches used measured 3/8 by 3/4, and — p< 1§ 3/4." ——____—p Optional < 21-1/4" — 25-1/2" cc it …crude but ef- ee ’ es with masking tape = _ prevents resin or glue spills from chang- Clockwise wis AND… x oa \ SEND 35¢ FOR NEW 75 CATALOG as the planks must be weighted in the 2 oa area using No. 60 paper seems to work well. Fig. 3 shows a cross-section through and then lightened by cutting kerfs with Then a FIG. 3 “baggie” is cut open and put SECTION THROUGH HATCH poesia ae Hatch Planks SSS ~ue Gy # Gi Ke Deck | Planks 7 . Hatch frame WHEN CONTACTING ADVERTISERS, TELL ‘EM MODEL BUILDER SENT YOU! E ; Brees att Inner coaming 71 ARE wc. CUSTOM R/C CAR COMPONENTS Sailing Yachts For Radio Control SN \ TAHOE 600 Rr AMYA 36/600 CLASS LENGTH acamM 36 tn 9 ‘%q In SACL AREA B00 sq In $35.95 HRE cnassis KIT… VALKYRIE AMYA 50/600 CLASS LENGTH BEAM $134.95 The Hallum Racing Enterprises chassis kit is now available and includes: Chassis plate, engine mount, front end assembly, rear 50 in 11% In blocks and bearings, $74.95 S4lL AREA BOD sq in Complete kits include molded plastic hull and components, all rigging. finished sails and semi-finished wooden parts. TAHOE SAIL SYSTEM $24.95 VALKYRIE SAIL SYSTEM $33.95 and mounts, and aerodynamic wing assembly. All related hardware faircraft quality) included. Front and rear ends fully ad- justable. All parts available separately. BODY NOT INCLUDED. MRE YIOTOR fos MODEL / Engine mount available separately ($9.95). Fits Veco, McCoy, and Taipan engines. H PE Winner of Expert Road Race, 11715 Adenmoor Ave. Downey, Ca. 90241 Calif residents add 6TM tas Kydex for bumper/radio mounts/roll bar, battery and receiver hangers, steering override, throttle averride, flywheel and clutch assembly (12 teeth), integral gear and brake (56 teeth), brake band and liners, front and rear wheels and tires, 1/4 inch diameter rear axle, body mounts, wing tubes 1 DEALERS WELCOME HRE Inc., P.O. Box 4658, down over the inner coaming. The hatch cover frame is put around the outside of the inner coaming and held with a resin to the frame and put the hatch cover planking down. Remember to have the chosen side of the planking up so it will end up the same color as the deck. foam tape, as a gasket, around the inside of the hatch cover. You may then also wish to put a block and screw eye inside the hatch and a fairly weak rubber band from the eye to somewhere inside the boat fora positive hold down. I’m also going to put some sort of a handrail arrangement on top of each hatch to Finally, put the hatch cover in a ‘‘bag- provide a grip for removing the hatch. gie’’ and put the outer coaming down around it, as shown in the photo. You Like the rest of the hatch, what ever you choose must be absolutely incapable of fouling a sheet. Sooo … keep it low and make sure it is rounded and smooth. The hatch arrangement is certainly a matter of personal preference. | think the constraints are, first; that the hatches be as far inboard as possible, and second rubber band (see photo). Then apply may find, upon replacing the hatch after everything has cured, that it is a super-tight fit. That is fine, Just carefully sand the hatch until it fits easily. As an added measure against water entry, you may wish to put a bead of PEAPOD You’ll pass by the fleet when your POWER boat is powered 1975 Winter Nationals, San Jose, California. by CARR SAILS. With Irvine, California 92664 that they be as few as possible. You may opt for a third hatch over the rudder stock, or even a fourth over the jib sheet block in the foredeck. (Confidentially, I’ve always wanted to be able to take the entire deck off by unzipping a zipper which runs around the sheer! !) The joint between hull and deck is always a knotty one. It is necessary to maintain watertight integrity, but there is a need for smoothness, strength and an eye to how the finish will be applied. Fig. 4 shows the plan, and next month we’ll have a picture of the finished product. | would welcome your sugges- tions on such joints, and hope that enough of you will drop me a note and a sketch so that we could present all of them together in a future column. Resin Varnish “LZ more Deck Planks competition wins in more 4.M.Y.A, chasses than any other saitmaker, we know what an important part of success sails are!!!! Act now and this MODEL SUILDER Special will Sheer clamp allow you to suit up your PEAPOD for only $20.00, a saving of 1/3 from regular prices. Write for our off-season savings in other classes and for a copy of the 1974 brochure and price listing!!! Specify color: white, gold, red, dark blue, light blue or green. Specify main luff required: bolt-rope, dress hooks, double luff. Give MYA boat number and choose numeral color: ARR 72 ‘ere payable to: C A IR R black, white, red. SA [ LS 7607 GRESHAM ST., SPRINGFIELD, VA. 22151 Hull ° FIG.4 SHEER TREATMENT Next month we’ll mount the deck hardware, finish the spars, and hoist the sails. If we don’t have a cold snap, maybe Vil have some pictures of our model on the water. The list of recommended Fisher fittings is appended for your use. WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER Remember to mail in your $5.00 dues to AMYA Secretary, Bud Salika, 3917 Write For FREE BROCHURE Sunnyside Ave., Brookfield, II]. 60513. The AMYA’s Quarterly Newsletter is the second best source of model yachting information available today on a regular basis, and certainly worth the price of a year’s dues. Besides, our fearless MB Editor is offering a On Our Complete Line Of R/C PROPORTIONAL EQUIPMENT including WORLD’S SMALLEST SUPERLIGHT 15% discount on MB subscriptions to AMYA members who provide him with their membership DIGITAL CONTROL SYSTEMS number. That is a good deal! A new boat is being manufactured by Vanguard, Inc., 1251 East Wisconsin Ave., Pewaukee, Wisconsin 53072. This SMALLEST SIZES LOWEST 13400-26 Saticoy Street CANNON is for those folks who think a WC/12 is too small. The “J-boat” is 84 inches LOA, has 36 pounds of lead ballast, and sports a 9 to 10 foot mast. The jib on the beast is larger than an EC/12 – PRICES North Hollywood, Calif. 91605 ELECTRONICS Phone (213) 764-1488 main, and the head of the main is so far up in air that you’ll need oxygen while fixing the main halyard! Still, it is a real effort being made to fill the needs of skippers with an eye for size!!! Write to The Chuck Millican at the above address for ”Hi-Performance Compact” FEATURES details. The prices are quite reasonable, contour-sanded wing ribs and bits and pieces can be purchased machined balsa & plywood parts for the scratch builder. It is possible that a whole new AMYA Club will be formed using these big “J’s” as their chosen boat. Heading up the effort is Roger Strube, 4775 S. Packard Ave., Cudahy, Wisconsin 53110. Roger is a member of South Shore Yacht Club and says that interest is running high for plug-in wing panels & stabilizer spruce spars : MN 8 hour building time a> MsS LIMITED price $27.50 R/C sailing in the area. Contact him for EO ot all flying stabilizer further details. List of A. J. Fisher Fittings for the YANKEE Quan. 3 Stock No. 245 Description 7 218 1 inch Spring Cleats 25 2 566 Deck Fairlead 35 Flat Bowser Unit Price $ .10 Superior BALSAWOOD SUPPLY Co. WV. carry from ‘sq. | 562 4 inch Jib Rack 1.25 1 570 4 inch Mast Rack w/ 5/8 inch ferrule and pin 1.60 to ‘2x1t” stripwood E.: and reliable service Carers to the modeler who needs quality wood 1 530 3/4 inch Full Band Gooseneck 2.25 J 595 Jib Club Swivel 2.75 1 231 One Eye Stay Plate 30 2 226 Three Eye Shroud and Stay Plate 1.50 4 580 Swivel Turnbuckle, 3/4 inch take up 1.25 | 423 Sheet Hook .OS A. J. Fisher, 1002 Etowah, Royal Oak, Mich. 48067 I’d also like to report that yet another AMYA club has received sanction. Club #43 Mike Taibi is the WINDWARD MODEL YACHTING ASSOCIATION, and can be reached through the Secretary, Patri- cia E. Bird, 13161 S.W. 10th St., Miami, Florida 33144. These lucky people are saiting all year ‘round in that warm summery sun. Don’t us northerners just hate ‘em for it? I’m planning a column on spinnakers for the future, and would like to hear from you scale and cruising skippers Workbench… Continued from page 4 ter had been buried in a pile of correspondence on the Hutchinson acquisition, allof which was distributed to the Council members late Friday night. The magazine question was then first on the direct at 7607 Gresham St., Springfield, agenda Saturday morning. Of the Council members we have questioned so far, none saw the letter before the meeting, as can be well imagined. Furthermore, our letter, and one from Hal Carstens, publisher of Flying Models, was never called to the attention of the Council. This in spite of the importance of the matter, and the fact that ours were the only two letters available to be considered. Also, this writer had asked that Va. 22151. his letter be read aloud to the Council who have experimented with them. It is a fascinating subject and one that I’ll need your input to do properly. Write to me in care of MODEL BUILDER, or APRIL 1975 e send self addressed, stamped envelope for a catalog to PO. BOX 8082 LONG BEACH, Ca. 90808 in order to assist them in determining what the next step should be. It was not. The letter was as follows: “To: All Members of the AMA Executive Council, and the Executive Director From: Bill Northrop, Publisher of MODEL BUILDER Magazine Date: February 12, 1975 Subject: The latest magazine situation, Gentlemen: “With all the important matters that you had scheduled for discussion during your February 15 meeting, it goes without saying that you hardly needed the above subject added to your agenda. WHEN CONTACTING ADVERTISERS, TELL ‘EM MODEL BUILDER SENT YOU! 73