7 Flight Mystery and Aerodynamic Principles
527
Fig. 7.107 B737 slide rail and pulley mechanism
Fig. 7.108 B737 slide rail and pulley type flap
7.12 Aircraft Landing Gear
Another important component produced by mimicking bird is the landing
gear, which is used when the aircraft is taking off and landing. As mentioned
above, the bird will retract its legs when soaring, indicating that the bird
has realized that the aerodynamic drag generated by the two legs if they are
not retracted will be very large, resulting in the bird not being able to fly