发明名称 |
Aircraft with two alternatingly operated propellers of different radius |
摘要 |
An aircraft has at least one drive motor coupled to first and second propellers for forward thrust of the aircraft. The first propeller is dimensioned for takeoff and landing conditions and for flight conditions below a predetermined first flight altitude. The second propeller has a radius which is larger than a radius of the first propeller and is dimensioned for a second flight altitude which is substantially greater than the first flight altitude. The two propellers are alternatingly coupled with the at least one drive motor so that the two propellers are respectively individually adapted to the power of the at least one drive motor for a full utilization of the power of the at least one drive motor for forward thrust.
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申请公布号 |
US5743489(A) |
申请公布日期 |
1998.04.28 |
申请号 |
US19950469004 |
申请日期 |
1995.06.05 |
申请人 |
STEMME GMBH & CO. KG |
发明人 |
STEMME, REINER |
分类号 |
B64C11/28;B64C11/48;(IPC1-7):B64C39/00 |
主分类号 |
B64C11/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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