CHAMPION The model is based on a cone-shaped tube of the housing. She bent from steamed plywood with a thickness of 0.8 mm on a metal mandrel, dried, and then removed from the mandrel and trimmed at the ends. The most reliable and easy option to the longitudinal seam of the overlapping edges of the sheet-patterns with material removal on one of them “no.” Formed after the gluing of the ledge is removed with the help of files and sandpaper.
The front and rear ends of the tube are closed with balsa fairings (extremities). The front is reinforced through the installation of vertical ribs made of plywood with a thickness of 2 mm and light weight balsa for detail. The lower surface of the nasal tip is flat and acts as a two-stage step, to preserve the high quality surface which helps the covering is of duralumin sheet thickness of 0.25 mm.
Before installing the rear end in a plywood housing pipe is sealed with a segmental boss section and the balsa fairings of the transition to the stabilizer. Using these details the balsa stabilizer mounted on the housing. The reliability of the connection increase the two screws M3 at the same time holding and dural plate with thickness of 1.5 mm for the rear “shoulder” of the bridle. After you complete these operations you can paste the tail fairing of the hull.
At the ends of the stabilizer installed balsa floats of small size (they are only needed during the launch the glider), trimmed bottom and fore redan, thin sheet duralumin. The stabilizer is processed to obtain a carrier PLANO-convex profile.
Cord airboat class B1
Cord airboat class B1:
1 — fore end, 2 — body, 3 — Kok air vnta, 4 — engine, 5 — motor, 6 — fuel tank 7 — pylon fairing. 8 resonance exhaust pipe with an extra chamber, noise muffling, 9 — float 10 — stabilizer. 11 — the rear attachment point of the bridle. 12 — rear extremity of the body, 13 the front attachment point of the bridle, 14 — propeller. Below shows the mandrel for the manufacture of the tubular body. Mandrel length 800 mm.

Fairing power plant is laminated of fiberglass, impregnated with epoxy resin. To increase the reliability of the connection of the pylon fairing in the last wedge is mounted a horizontal bulkhead, its the hole includes spikes, ledges plywood pylon. Aluminum milled motor mount pulled two M3 screws to the transverse metal bulkhead fairing.
Tin fuel tank has a shape that provides uninterrupted power to fuel the engine in all positions of the housing. In side the top of external (relative to the center of rotation of the cords) of the wall of the sealed tube power supply in front of the opposite wall of the tube aspirated volume tank pressure selected from the expansion cone primary resonant exhaust pipe. Get rid of pricing in fuel and the resulting irregularities in operation of the engine allows the installation of the tank on an elastic cushion of silicone rubber.
The reliability of the pylon inserts into the housing is enhanced by three powerful spikes of the pylon passing through a plywood tube. The joints of this important connection needs to be customized carefully bonding is epoxy resin. The surface of the collected model hydroplane polished, wooden elements covered by the compositions guaranteeing protection of components from moisture, after which the apparatus is coated with colored enamels and polished.

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