Avro Avis
| Avro 562 Avis | |
|---|---|
|
|
| Type: | Sport plane |
| Design country: | |
| Manufacturer: | |
| First flight: |
1924 |
| Number of pieces: |
1 |
The Avro 562 Avis was a single-engine, two-seat aircraft produced by the British manufacturer Avro .
history
The single-handled biplane was developed at Avro for a British Aviation Department competition held in Lympne in September and October 1924 .
The machine with folding wings was based on the Avro design Avro 514 from 1914. The fuselage was identical to that of the Avro 514, but the wings were a new design according to the specifications of the competition. Ailerons were attached to all four surfaces over the full length of the surface and could be used as landing flaps.
The maiden flight of this small machine, equipped with a 35 hp (26.1 kW / 35.5 hp) 3-cylinder in-line Blackburne Thrust engine with a displacement of 1096 cm³ , which acted directly on the shaft, took place in Hamble . As a precaution, another machine was prepared for participation in the competition. This machine, however, had a different engine - a 32.6 hp (24.31 kW / 33.05 hp) Bristol Cherub II (also with 1096 cm³ displacement), but which was equipped with a gearbox.
Ultimately, however, Avro decided to forego the first model, only to build the second machine ready to fly and to transport it overland to Lympne. However, the 562 had inexplicable problems when the engine was running before the start of the competition and only delivered half the engine power.
Notwithstanding this, Avro chief test pilot Bert Hinkler decided to take off on September 30, 1924, but was disqualified because he could not cope with the prescribed course within the permitted time frame.
The following night, the Avro mechanics converted the aircraft to direct drive, and the next day Hinkler won the Grosvenor Challenge Trophy with the machine by completing the 12.5-mile (20.12-km) course eight times flew through at an average speed of 65.87 miles / hour. (approx. 106.01 km / h) reached.
After further tests in Martlesham in March and April 1925, Hinkler took part in the “Lympne Meeting” on August 1, 1925 and later in other events with the 562 , which was now equipped with a special aluminum propeller .
In September 1926, the Avis flew under Wing Commander W. Sholto Douglas , now with a Blackburn Thrust with 1500 cc displacement, which was increased to 38 hp (28.34 kW / 38.53 PS) in the "Two Seat Light Airplane" competition in Lympne with, however, unsuccessful due to a chassis damage with subsequent disqualification.
In the following year there was a further conversion to the Bristol Cherub II engine and the sale to a private person.
After various changes of ownership in the following years, the Avro 562 Avis was scrapped in December 1931.
Technical specifications
| Parameter | Data Avro 562 Avis |
|---|---|
| crew | 1 |
| Passengers | 1 |
| length | 7.32 m |
| Wingspan / upper wing | 9.17 m |
| height | 2.74 m |
| Wing area | 22.86 m² |
| Empty mass | 256–275 kg (depending on engine) |
| Max. Takeoff weight fully fueled | 428–476 kg (depending on engine) |
| drive | various (see text) |
| Top speed | approx. 120 km / h |
See also
literature
- AJ Jackson: Avro Aircraft since 1908. 2nd edition, Putnam Aeronautical Books, London 1990, ISBN 0-85177-834-8 .
- AJ Jackson: British Civil Aircraft since 1919. Volume 1. Putnam, London 1974, ISBN 0-370-10006-9 .
