Avro Avian

 

1st Flight 1926

The Avro Avian was a series of British light aircraft designed and built in the 1920s and 1930s.

While the various versions of the Avian were sound aircraft, they were comprehensively outsold by the de Havilland Moth and its descendants.

Variants

Avro 581 Avian 

First prototype, one 70 hp (52 kW) Armstrong Siddeley Genet.

Avro 581A 

Modified first prototype, one 85 hp (63 kW) ADC Cirrus and reduced span wings.

Avro 581E 

Further modified Avro 581A for long distance flights, with new wings and modified fuselage.

Avro 594 Avian I 

Preproduction aircraft, two built.

Avro 594 Avian II 

Initial production, 85 hp (63 kW) Cirrus II engine, nine built.

Avro 594 Avian III 

Modified engine mount and tubular steel struts, 33 built.

Avro 594 Avian IIIA 

95 hp (71 kW) Cirrus III engine, 58 built.

Avro 594 Avian IV 

Revised undercarriage and ailerons, 90 built.

Avro 605 Avian 

Two Avro 594 Avian IIIs were converted into floatplanes.

Avro 616 Avian IVM 

Steel tube fuselage. Powered by 105 hp (78 kW) Cirrus Hermes I or 100 hp (75 kW) Armstrong Siddeley Genet Major, approximately 190 built.

Avro 616 Sports Avian 

Version for racing with reduced drag, 16 built.

Avro 616 Avian IVA 

modified one-off long range version for Charles Kingsford Smith, Southern Cross Junior, 120 hp (90 kW) de Havilland Gipsy II engine, with additional fuel tank and revised 30 ft span wings.

Avro 616 Avian V 

Long range single-seater again built for Charles Kingsford Smith, Southern Cross Minor.

Bill Lancaster would later attempt to fly solo from England to South Africa in this aircraft, and die in the attempt.

Avro 625 Avian Monoplane 

Low-wing monoplane development, two built.

Specifications

Crew: 2

Length: 24 ft 3 in (7.39 m)

Wingspan: 28 ft 0 in (8.53 m)

Height: 8 ft 6 in (2.59 m)

Wing area: 245 sq ft (22.8 m2)

Empty weight: 1,005 lb (456 kg)

Gross weight: 1,523 lb (691 kg)

Powerplant

1 × Cirrus Hermes I 4-cylinder air-cooled in-line piston engine, 105 hp (78 kW)

Propellers: 2-bladed fixed-pitch propeller

Performance

Maximum speed: 105 mph (169 km/h, 91 kn)

Cruise speed: 90 mph (140 km/h, 78 kn)

Range: 360 mi (580 km, 310 nmi)

Service ceiling: 12,500 ft (3,800 m)

Rate of climb: 600 ft/min (3.0 m/s)

Wing loading: 6.21 lb/sq ft (30.3 kg/m2)

Power/mass: 0.069 hp/lb (0.113 kW/kg).

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