Acme Sierra

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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 Aircraft Co 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)[edit]

Data from [2]

General characteristics

  • Crew: 1
  • Length: 59 ft 1 in (18 m)
  • Wingspan: 20 ft 2 in (6.15 m)
  • Empty weight: 590 lb (268 kg)
  • Powerplant: 1 × Continental C-85 4-cyl. air-cooled horizontally-opposed piston engine, 85 hp (63 kW)


  • Maximum speed: 200 mph (322 km/h; 174 kn)

See also[edit]

Aircraft of comparable role, configuration and era


  1. ^ "Acme Sierra". Retrieved 16 November 2010. 
  2. ^ Eckland, K.O. (2 May 2009). "Aircraft Ab - Ak". Archived from the original on 5 December 2012. Retrieved 26 January 2012. 

External links[edit]