| 词条 | Spencer Air Car | |||||||||||||||
| 释义 |
The Spencer Amphibian Air Car is an American light amphibious aircraft. The name was first used in 1940 for a prototype air vehicle that developed into the Republic Seabee. The name was later used by its designer Percival Spencer for a series of homebuilt amphibious aircraft roughly based on the Seabee design.[4] Design and developmentPercival H. Spencer formed the Spencer-Larsen Aircraft Corporation and designed the SL-12C amphibian. Disenfranchised with corporate policies in the development of the SL-12C amphibian, Spencer started the Spencer Amphibian Air Car in 1940. The original Spencer Amphibian Air Car was test flown in 1941. The aircraft was put into storage due to restrictions in place in America during World War II. The aircraft and rights to its design were sold to Republic as the "Seabee" in 1943.[5] After leaving Republic, he designed the on-off two-seat Air Car. In 1968, Spencer and retired USAF Col. Dale L. "Andy" Anderson formed a new company to market a four-place amphibious homebuilt design once again called the Spencer Amphibian Air Car, with S-12C, S-12D, S-12E, and S-14 variants. The first example was test flown in 1970 in Chino, California. The unit had a build cost of $8700.00 The S-12-D Aircar is an improved and larger four-seat aircraft, which retains the basic layout of the Seabee. The two seat S-14 used advanced composites and was test flown by Spencer in 1983 at the age of 86. Its design did not meet expectations and the sole example was donated to the Experimental Aircraft Association Museum in Oshkosh, Wisconsin. The Air Car is built from wood, steel and glass-fibre. It has a strut-braced high wing and the cabin and fuel-carrying floats are similar to the Seabee, but the tail unit is more angular and a retractable tricycle undercarriage is fitted. In addition to examples constructed by Spencer, plans of the design have been sold for home construction and the first amateur-built Air Car flew in September 1974. Over 50 had flown by 2001.[3] Examples are currently (2009) flying in the USA and Canada. Variants
Later prototype built in association with the (Victor A) Larsen Aircraft Co, incorporating many design changes, but flight test were unsuccessful and the sole prototype was dismantled after 10 hours flying.[6] Specifications S-12-D{{aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref=Simpson, 2001, p. 519. |crew=1 |capacity=3 passengers |payload main=1,050 lbs |payload alt=476 kg |payload more= |length main=26 ft 0 in |length alt=7.92 m |span main=37 ft 4 in |span alt=11.38 m |height main=9 ft 6 in |height alt=2.9 m |area main= |area alt= |airfoil= |empty weight main=2,050 lbs |empty weight alt= 930 kg |loaded weight main= |loaded weight alt= |useful load main=1,050 lbs |useful load alt= 476 kg |max takeoff weight main=3,100 lbs |max takeoff weight alt= 1,406 kg |max takeoff weight more= |more general= |engine (prop)= Lycoming O-540-E4B5 |type of prop= |number of props=1 |power main=260 h.p. |power alt= 191 kW |power original= |power more= |propeller or rotor?= |propellers= |number of propellers per engine= |propeller diameter main= |propeller diameter alt= |max speed main=147 mph |max speed alt=237 km/h |max speed more= |cruise speed main=135 mph |cruise speed alt=217 km/h |cruise speed more |stall speed main= |stall speed alt= |stall speed more= |never exceed speed main= |never exceed speed alt= |range main=700 miles |range alt=1,127 km |ferry range main= |ferry range alt= |ferry range more= |ceiling main= |ceiling alt= |climb rate main=800 ft/min |climb rate alt= 244 m/min |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |more performance= |avionics= }} References
1. ^Johnson, E. R., "Everyman's Amphibian," Aviation History, November 2012, p. 15. 2. ^Johnson, E. R. "Everyman's Amphibian," Aviation History, November 2012, p. 15. 3. ^1 Simpson, 2001, p. 518 4. ^{{cite journal|magazine=Air Trails|date=Summer 1971|page=82}} 5. ^http://www.seabee.info/spencer.htm 6. ^{{cite web |url=http://aerofiles.com/_sk.html |title=American airplanes: sk - ss |publisher=Aerofiles.com |date=2009-03-16 |accessdate=2011-04-06}}
External links{{commons category|Spencer Air Car}}
4 : United States civil utility aircraft 1970–1979|Homebuilt aircraft|High-wing aircraft|Aircraft first flown in 1941 |
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