wind tunnel speed
41Stall (flight) — For other uses, see stall. In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is… …
42Deflected slipstream — is an approach to creating an aircraft that can take off and land vertically (VTOL), or at least with a very short runway (STOL). The basic principle is to deflect the slipstream from one or more propellers approximately 90 degrees, to create an… …
43Bell P-39 Airacobra — P 39 Airacobra P 39Q 1BE 42 19447, Saga Boy II of Lt. Col. Edwin S. Chickering, CO 357th Fighter Group, July 1943 Role Fighter …
44Langley Research Center — NASA Langley Research Center Aerial view of Langley Research Center …
45McDonnell XP-67 — XP 67 Bat / Moonbat [N 1] Role Interceptor …
46flight, history of — ▪ aviation Introduction development of heavier than air flying machines. Important landmarks and events along the way to the invention of the airplane include an understanding of the dynamic reaction of lifting surfaces (or wings), building… …
47Nuna 3 — Nuna solar racer Nuna 1 (2001) Nuna 2 (2003) Nuna 3 (2005) Nuna 4 (2007) Nuna 5 (2009) Nuna 6 (2011) …
48North American P-51 variants — Main article: North American P 51 Mustang Further information: North American A 36, F 82 Twin Mustang The North American P 51 Mustang was an American long range single seat fighter aircraft that entered service with Allied air forces in the… …
49Douglas Skyrocket — infobox Aircraft name = Douglas Skyrocket type = Experimental high speed research aircraft manufacturer = Douglas Aircraft Company caption = Douglas Skyrocket D 558 2 designer = first flight = 4 February avyear|1948 introduction = retired =… …
50Nuna — For other uses, see Nuna (disambiguation). Nuna 3 at Circuit Park Zandvoort Nuna solar racer Nuna 1 (2001) Nuna 2 (2003) …
