502
P. Liu
Fig. 7.70 Flying seagull
Fig. 7.71 Practice of drag reduction
is in front of the lift. The lift is not at the same point as the gravity. This will
result in a nose down moment around the center of gravity. If there is no horizontal tail behind the fuselage, the airplane cannot fly stably. When making
a kite, in order to avoid the nose down flight, the knot of the rope must be
P. Liu
Fig. 7.70 Flying seagull
Fig. 7.71 Practice of drag reduction
is in front of the lift. The lift is not at the same point as the gravity. This will
result in a nose down moment around the center of gravity. If there is no horizontal tail behind the fuselage, the airplane cannot fly stably. When making
a kite, in order to avoid the nose down flight, the knot of the rope must be