| 词条 | American Eagle A-129 | |||||||||||||||
| 释义 |
The American Eagle A-129 was a 1920s biplane built in the U.S.A.
Design and developmentThe preceding American Eagle A-101 of 1926 had achieved some success, but its fierce spin characteristics had resulted in several crashes during training flights. Giuseppe Bellanca redesigned the biplane with a longer fuselage and narrower cowling to accommodate the five-cylinder Kinner K-5 100 h.p. radial engine, which had its cylinder heads exposed. To mark the year of its first appearance, the designation A-129 was applied.[1] Operational historyInitially designed to replace the Porterfield Flying Schools A-101s, the new biplane proved to have good flying characteristics and more than 400 were built. The aircraft were also flown by "barnstormers" and sportsmen pilots. Several A-129s remain airworthy and examples are preserved at the Rhinebeck Aerodrome Museum at Old Rhinebeck in New York state and in the Kansas Aviation Museum Wichita, Kansas.[2] VariantsA range of engines was fitted to the A-129 without changing the type designation. They included the 90 h.p. Curtiss OX-5 and others up to the 200 h.p. Wright J-4. Specifications (100 h.p. Kinner K-5)(per www.aerofiles.com/_amereagle.html) {{aerospecs|ref= |met or eng?=eng |crew=1 |capacity=1 or 2 |length m= |length ft=23 |length in=5 |span m= |span ft=30 |span in=0 |swept m= |swept ft= |swept in= |rot number= |rot dia m= |rot dia ft= |rot dia in= |dia m= |dia ft= |dia in= |width m= |width ft= |width in= |height m= |height ft= |height in= |wing area sqm= |wing area sqft= |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |wing profile= |empty weight kg= |empty weight lb= |gross weight kg= |gross weight lb= |lift kg= |lift lb= |eng1 number=1 |eng1 type=Kinner K-5 |eng1 kw= |eng1 hp=100 |eng1 kn= |eng1 lbf= |eng1 kn-ab= |eng1 lbf-ab= |eng2 number= |eng2 type= |eng2 kw= |eng2 hp= |eng2 kn= |eng2 lbf= |eng2 kn-ab= |eng2 lbf-ab= |max speed kmh= |max speed mph=105 |max speed mach= |cruise speed kmh= |cruise speed mph=90 |stall speed kmh= |stall speed mph=35 |range km= |range miles=500 |endurance h= |endurance min= |ceiling m= |ceiling ft= |g limits= |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin= |sink rate ms= |sink rate ftmin= }} References
1. ^Simpson, 2001, p. 40 2. ^Ogden, 2007, p. 572
External links{{commons category|American Eagle A-129}}
4 : United States civil utility aircraft 1920–1929|Biplanes|Single-engined tractor aircraft|Aircraft first flown in 1929 |
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