Acme Sierra

The Acme S-1 Sierra was an experimental aircraft of unusual configuration built in the US in 1948 to investigate the advantages of a pusher propeller configuration. Apart from this engine installation, the aircraft was unusual in having an X-shaped tail incorporating ruddervators on the upper fins. The wing was mounted midway up the fuselage and was unswept. During the 1960s, the US aerospace manufacturer Northrop used the aircraft as a technology demonstrator for boundary layer control concepts.

pecifications (S-1 Sierra)

aircraft specifications
plane or copter?= plane
jet or prop?= prop
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crew= one, pilot
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length main= 18 ft 0 in
length alt= 5.49 m
span main= 20 ft 2 in
span alt= 6.15 m
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empty weight main= 590 lb
empty weight alt= 268 kg
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engine (prop)=Continental C-85
type of prop=4-cylinder air-cooled horizontally-opposed engine
number of props=1
power main= 85 hp
power alt= 63 kW
power original=

max speed main= 173 knots
max speed alt= 200 mph, 320 km/h
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ee also

aircontent
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* Göppingen Gö 9
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