| 摘要 |
<p>The model aircraft has three propellers (1,2,3) driven by electric motors. Two equal sized drive units (4,5) are attached in carriers to the wing tips. A smaller drive unit (6) is attached to the tail of the aircraft. The two front drive units (4,5) can preferably be tipped forwards and backwards by a servo control. The aircraft can be flown in a helicopter type motion or forwards like an airplane.</p> |
