Letov S-428
Powered by an Avia VR-36 V-12 liquid-cooled inline piston engine of 740 hp, the Letov S-428 was a close support version of the Letov S-328. Only one prototype was built.
Letov S-428
Powered by an Avia VR-36 V-12 liquid-cooled inline piston engine of 740 hp, the Letov S-428 was a close support version of the Letov S-328. Only one prototype was built.