1978 what improvements did Mike Gridi make to his spider silk condor humanoid plane?

From 65438 to 0978, Mike Gridi made a series of structural improvements to his "Spider Silk Condor" human aircraft. The first is to reduce the weight of the aircraft as much as possible, and replace the lightweight alloy tube with graphite fiber tube, so that the weight of the aircraft is reduced from 32 kg to about 25 kg, and the structural strength of the aircraft is improved. Secondly, the wing area is reduced, which makes the geometric shape of the wing change from wide to long, and at the same time reduces the rotational speed of the propeller, thus reducing the air resistance encountered by the aircraft in the process of traveling by half. The third is the rational use of pedal power-there are two sets of pedal systems on the plane: one of them directly drives the gear of the propeller through a plastic chain; Another set of plastic chains leads to the "torque balancer", which increases the flight speed from 18km to 22km. The improved human plane is called "Light Albatross".

Carbon fiber flapping wing machine