http://en.wikipedia.org/wiki/Tupolev_Tu-144
they added a simple but practical device: two small retractable canard surfaces, one on either side of the forward section on the aircraft, to increase lift at low speeds.
http://en.wikipedia.org/wiki/Tupolev_Tu-144
they added a simple but practical device: two small retractable canard surfaces, one on either side of the forward section on the aircraft, to increase lift at low speeds.
• 回复:前苏联的 Tu-144 有 !!! -kmyc- ♂ (55 bytes) () 05/04/2011 postreply 17:32:00