The Dewoitine D.520 was a French fighter aircraft of the Second World War. First flight took place in October 1938 and only in 1953 the plane was retired. Operators of the Dewoitine were not only France but Bulgaria, Italy and Nazigermany. The D.520 had a wingspan of 10.2 m / 33 ft 6 in and…

Borboleta menor RPU 20 is a lightweight, high-wing balsa monoplane with a V-tail and clean flight performance, designed for use with the RPU 20 rubber power unit. Easy to build from few parts, the model is compatible with Velcro-mounted propulsion and maintains stable handling in the air. Its name, Portuguese for “small butterfly,” reflects the…

Borboleta maior RPU 30 is a high-wing balsa monoplane with a V-tail, designed for use with the RPU 30 power unit. Larger than its “menor” counterpart, it is easy to build from few parts and delivers smooth flight performance. Velcro-mounted and balanced for reliable launches, it’s ideal for mid-sized models. The name, Portuguese for “big…

Still life in purple RPU 20 is a small, lightweight twin-boom balsa model designed for use with the RPU 20 rubber power unit. Easy to build and finished in striking colors, it offers stable flight performance when equipped with a 4-inch airscrew and less powerful brown rubber. Its compact 32 cm wingspan and 36 g ready-to-fly weight…

A light, low-wing balsa model with a stubby design and solid flight performance. Built for use with an RPU 20 — a detachable rubber power unit made from common materials like skewers, rubber, and Velcro. The same RPU can be used across multiple models. The name, in Spanish, means: Appearances are deceiving.

Cuesta menos de lo que crees RPU 20 is a high-wing, stubby balsa monoplane designed for use with the modular RPU 20 power unit. With a 45.5 cm wingspan and ready-to-fly weight of 45 g, it offers easy assembly, good flight performance, and a playful look. The name, Spanish for “It costs less than you think,” reflects…

Lastivka RPU 20 is a sleek, glider-like balsa monoplane with a V-tail, designed for use with the modular RPU 20 rubber power unit. With a wingspan of 39.5 cm and a ready-to-fly weight of 43 g, it offers smooth handling and an elegant profile in flight. Easy to build from minimal parts and reinforced with a lightweight…

Snunit RPU 30 is a large, glider-style high-wing balsa monoplane with a V-tail, designed for use with the RPU 30 rubber power unit. With a wingspan of 62.5 cm and a ready-to-fly weight of 61 g, it combines elegance and simplicity in both appearance and construction. Reinforced for durability and balanced for smooth flight, the model is…

Kırlangıç RPU 40/30 is a large, glider-style balsa monoplane with a V-tail and detachable wing, designed for use with either the RPU 30 or RPU 40 power unit. With a span of 75 cm and a base weight of 75 g (up to 100 g ready to fly), it offers smooth, stable flight and easy transport. Built from…

The projected Schehak single seat sport and leisure tandem was never built as its designer D. Schehak from Hamburg/Germany died prematurely. A three-view of the plane and some basic information were given in the 19/1937 issue of „Flugsport“ magazine. These drawings were the basis for my model. Powerplant would have been a 20 hp piston…