Saab 21R – Rond te Lopen

De Saab 21R was a Swedish twin-boom fighter/attack aircraft developed and produced by Saab. It was a jet-powered development of the earlier piston-engined 21. It was the first jet aircraft to be produced by Saab. Along with the Russian Yakovlev Yak-15, the 21R was one of only two jet fighters to have been successfully converted from a piston-powered aircraft

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