FLAPPING WING AEROPLANE Russian patent published in 1996 - IPC

FIELD: aeronautical engineering. SUBSTANCE: flapping wing aeroplane has skeleton 1, landing gear 2, pilot's seat 3 and power plant 4. Mounted on skeleton 1 are two front crankshafts 5 and two rear crankshafts 6. Each front crankshaft 5 has crank 8 with crank pin 9 and rear crankshafts 6 have cranks 10 with crank pins 11. Secured on crank pins 9 is front wing 12 and on crank pins 11 is rear wing 13 by means of ball bearings 13 and angular U-shaped slots 15. EFFECT: enhanced reliability. 4 cl, 4 dwg