Avro Avis

The Avro 562 Avis was a single-engine, two-seat airplane of the British manufacturer Avro.

History

The einstielige biplane was developed by Avro for a competition of the British Air Ministry, which took place in Lympne in September and October 1924.

The machine with foldable wings was inspired by the Avro design Avro 514 from 1914. The hull was identical with that of the Avro 514, the wings, however, were a new design according to the specifications of the competition. Aileron were attached to all four faces of the in each case the entire length of the surface and could be used as a flap.

The first flight of this little machine equipped with a 35 hp ( 26.1 kW/35, 5 HP) payable 3-cylinder in-line engine Blackburne - thrust engine with 1096 cc capacity, who worked directly on the shaft, took place in Hamble. As a precaution, an additional machine for participation in the competition was prepared. However, this machine had a different engine - a 32.6 hp ( 24.31 kW/33, 05 PS) payable Bristol Cherub II (also with 1,096 cc displacement ), but which was equipped with a gearbox.

Ultimately, it was decided at Avro but to waive the erstgebaute copy to build only the second machine ready to fly and transport by land to Lympne. The 562, however, had unexplained problems with the engine runs prior to the competition and delivered only half of the engine power.

Nevertheless, decided Avro Chief Test Pilot Bert Hinkler to start on September 30, 1924, but was disqualified because he could not cope with in the permissible time frame the prescribed course.

The following night, the Avro mechanic built the plane around on direct drive, and the next day Hinkler won with the machine, the " Grosvenor Challenge Trophy" as he gave the 12.5 -mile ( 20.12 - km ) course eight times flew by while an average speed of 65.87 miles / hr. (about 106.01 km / h ) achieved.

After further tests in Martlesham in March and April 1925 Hinkler took the now equipped with a special aluminum propeller 562 first on August 1, 1925 at the " Lympne Meeting" and later in other events part.

In September 1926, the Avis flew under Wing Commander W. Sholto Douglas, now with a hp to 38 ( 28.34 kW/38, 53 hp) uprated Blackburn Thrust with 1,500 cc displacement in "Two Seat Light Aeroplane " Competition in Lympne with, however, unsuccessful due to a landing gear damage with subsequent disqualification.

The following year, a further conversion to the Bristol Cherub II engine and the sale to a private person.

After various owners, in subsequent years, the scrapping of the Avro 562 Avis took place in December 1931.

Specifications

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