| 摘要 |
A toy aircraft capable of circling in changeable radius which includes a fuselage and two rudders disposed on the wings, wherein multiple weight-adjusting recesses are longitudinally arranged on a top portion of the fuselage and arranged on upper rear positions of the wings at predetermined intervals, whereby multiple weight-adjusting ball members can be placed in the recesses and the locations or weight of the ball members can be changed to freely adjust the weight and gravitational center of the toy aircraft, at least one of the rudders being slightly inclined, making the shot aircraft fly in a circling pattern with the circling radius changeable.
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