Control Line: Aerobatics

BY NOW you should be well into the construction of your 1982 Dynamite Super-Stunter which will have 670 sq. in. and weigh 51 oz. with an OS Max .40 FSR engine and a 19-point finish. Right? Well, maybe at least you'll have 670 squares with a Max .40 FSR, and that should be in the right ball park. Which leads me into a short discussion of wing sizes and power plants. Now, we all know that plane weight, aspect ratio of the wing, flap size, and tail volume also figure into such a discussion, but while your plane is still in the building stages, you could alter power plant selection and, to some extent, wing size (tip size) and flap size.

Control Line: Aerobatics

SINCE it's that time of the year when many of us will be working on the final touches of our new airplane for the summer, I'd like to review some of the "How Tos" regarding those cute little transitions between wing and fuselage, stab and fuselage, and fin and fuselage-otherwise known as the fillets. The two most popular materials to use for fillets are Epoxolite and micro-balloons. I can remember that Lew McFarland at one time or another used balsa strips cut out to the shape of a fillet in hopes of cutting down weight. However, I think that we will limit our discussion to the first two materials mentioned.

Control Line: Aerobatics

AT THIS TIME there are several products available for Stunt fliers that are not available through regular hobby shops. These are, for the most part, products of the sometimes-nefarious "cottage industries;" however, the writer feels that this group of "manufacturers" can deliver the goods. But, please don't call the writer or Model Aviation if you have some delay in delivery. These manufacturers are putting out the products in their spare time and are subject to regular job pressures, etc.

Control Line: Aerobatics

THE FAI CL WORLD CHAMPIONSHIPS will be held in late July of this year in Sweden. The U.S.A. has the defending individual champion in the person of Les McDonald (who also won in 1976) who will be competing as an individual, a privilege allowed all defending World Champions. The U.S.A. team is the defending World Champion Team (1980 members were Les, Bill Werwage and Wynn Paul) whose members for 1982 are Bill Werwage, Bob Baron, and Ted Fancher.

Control Line: Aerobatics

BIPLANE STUNT still lives! Shades of Howard Thombs and his 1949 Open Stunt Walker Cup winner-the profile Di-Doe. The writer has received some pictures and information from Dr. Guy Markham of Lake Isabella, CA concerning his Fokker Triplane for Control Line Stunt that was built from a modified VK RC kit (which is based on 2 in. = 1 ft. scale). Guy relates that he is using a Veco .61 engine by Clarence Lee, and a 10-oz. tank from Mike Mustain on the 47-in. span, 720-sq.-in. airplane. Although the plane does not have flaps, Guy feels that it could be competitive in Stunt. He used a combination of Sig dope and plastic covering materials for the finish. He also said that it will glide about three-fourths of the circle when the engine cuts-a problem this writer had on a former biplane Stunter now in seven pieces in the garage! Maybe we'll see this triplane in competition this summer.

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