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Adaridi AD 3

Adaridi AD 3, an aircraft crafted by the Russian engineer Boris Adaridin, who resided in Finland, underwent a transformation in its design.

This wooden aircraft possessed a high-wing configuration and was equipped with a low-powered engine.

In 1923, the Finnish Air Force placed an order for a single Adaridi aircraft, which, interestingly, did not receive an official designation code.

The inaugural flight of this aircraft took place on April 17, 1924.

Leutnant Emil Thuy, a distinguished German ace with 32 victories during World War I, expressed his opinion on the Adaridi aircraft.

According to him, the aircraft exhibited mediocre flying qualities, and its 12 hp (9 kW) engine was deemed inadequate.

It is worth noting that the primary purpose of constructing this aircraft was not for military use, but rather as an exercise in aircraft construction.

From the summer of 1924 until 1931, the Adaridi aircraft was stationed at the fighter squadron located at Utti Air Force Base.

However, due to the aircraft’s challenging nature, inexperienced pilots struggled to successfully take off, resulting in its infrequent use.





5.3 m (17 ft 5 in)


11.6 m (38 ft 1 in)

Max take-off weight

260 kg (573 lb)


1 × Salmson AD.3,

3-cylinder air-cooled radial piston engine,

9 kW (12 hp)


2 bladed fixed pitch propellers


Maximum speed

106 km/h (66 mph, 57 kn)


National Library of Finland.

Finnish Air Force aircraft 1918–1939 – Kalevi Keskinen.

75 years of Finnish Air Force aircraft – Timo Heinonen.

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