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Aviotehas PN-3 Wikipedia
The PN-3 Isamaa Päästja - (Savior of the Fatherland in Estonian), was an Estonian fighter and surveillance aircraft.
The PN-3 was produced by Aviotehas in 1939, featuring a 370 kW (500 hp) Rolls-Royce Kestrel engine that allowed a top speed of 395 km/h (245 mph; 213 kn).
Just one prototype was finished, and it was delivered to the Estonian Air Force. For economy, the prototype was built with fixed landing gear. The series was planned with retractable landing gear, but the start of World War II and Soviet occupation of Estonia interrupted the PN-3 program, and it never reached mass production. After Estonia was occupied, the single prototype was used for target practice in 1940.