Acme S-1 Sierra
Acme Aircraft Company · United States · first flew 1953 · light aircraft
The Acme S-1 Sierra was an experimental aircraft of unusual configuration built in the United States to investigate the advantages of a pusher propeller layout.
Recognition (WEFT)
| W — Wings | High-mounted, straight |
|---|---|
| E — Engines | 1 × piston, fuselage-mounted |
| F — Fuselage | 5.49 m fuselage |
| T — Tail | V-tail |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Pusher propeller behind the cabin
- Y-shaped tail with ruddervators on the upper fins
- Unswept shoulder-mounted wing
It had a shoulder-mounted unswept wing, a pusher propeller and a Y-shaped tail with ruddervators on the upper fins.
Specifications
- The Acme S-1 Sierra has a length of 5.49 m (18 ft).
- It has a wingspan of 9.14 m (30 ft).
- Its maximum speed is 322 km/h (200 mph).
- Typical crew: 1.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
It was built in 1948 and its first flight is given as 23 November 1953. It was designed by Ron Beattie and Walt Fellers.
Variants
Only one aircraft was built.
Where you'll see it
In the 1960s the aerospace manufacturer Northrop used the aircraft as a technology demonstrator for boundary layer control concepts. It survives as a museum exhibit.
Related aircraft
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