The Z-37 Bumble-Bee is a Czech single-seater agricultural aircraft first flown as a prototype in 1963 two years after development started. The Z-37 is a low-wing cantilever monoplane, fitted with twi-wheel main landing gear to allow operation from muddy fields, powered by a M462 RF nine-cylinder radial air-cooled engine providing a cruising speed of 180 kmh and a range of 640 km. Research Z-37
 
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