Acme Sierra

Acme S-1 Sierra (Sue)
Role	Experimental light aircraft
National origin	United States of America
Manufacturer	Acme Aircraft Company (Sierradyne Inc.)
Designer	Ron Beattie, Walt Fellers
First flight	23 November 1953
Introduction	1953
Number built	1

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. ^[1]

Specifications (S-1 Sierra)

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General characteristics

• Crew: one, pilot
• Length: 18 ft 0 in (5.49 m)
• Wingspan: 20 ft 2 in (6.15 m)
• Height: ()
• Empty weight: 590 lb (268 kg)
• Powerplant: 1 × Continental C-85 4-cylinder air-cooled horizontally-opposed engine, 85 hp (63 kW)

Performance

• Maximum speed: 173 knots (200 mph, 320 km/h)

See also

Aircraft of comparable role, configuration and era

• Göppingen Gö 9
  

References

Aircraft produced by Acme Aircraft Corp Sportsman • Centaur • Sierra

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