Emsco B-4 Cirrus
Emsco Aircraft · United States · first flew 1929 · light aircraft
The Emsco B-4 Cirrus was a mid-wing two-seat trainer built in the United States in the late 1920s.
Recognition (WEFT)
| W — Wings | Mid-mounted, straight |
|---|---|
| E — Engines | 1 × piston, nose-mounted |
| F — Fuselage | 6.65 m fuselage |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Mid-mounted wing of rectangular plan with blunted tips
- Two tandem cockpits over the wing with windows in the underside wing roots
- Mainwheels enclosed in fairings on a fixed split-axle undercarriage
A small mid-wing monoplane with a fabric-covered wooden wing wire-braced to pylons in the fuselage, a small fin and a balanced rudder extending to the keel.
Specifications
- The Emsco B-4 Cirrus has a length of 6.65 m (22 ft).
- It has a wingspan of 10.97 m (36 ft).
- Its maximum speed is 217 km/h (135 mph).
- Typical crew: 2.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
It was powered by a 95 hp Cirrus III inline engine and was flying by November 1929. It never reached certification, partly because its designer, Charles Rocheville, left the firm.
Variants
Three variants with more powerful engines were flown. The B-7 re-engined the B-4 with a 165 hp Wright Whirlwind radial and received its approved type rating in February 1931.
Where you'll see it
Six B-4s were built but the type never reached certification. It took part in the First All-California Tour in 1929 and was shown at the Western Aircraft Show in Los Angeles.
Related aircraft
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