Avro 521


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Avro 521

The Avro 521 two-seat fighter, which was flown late in 1915, was something of a hybrid in that it embodied a number of Avro 504 components. Powered by a 110hp Clerget 9Z nine-cylinder rotary, the prototype had provision for a free-mounted 7.7mm Lewis gun fired from the rear cockpit. The prototype underwent official trials early in 1916, and 25 aircraft were ordered for the RFC, but this contract was subsequently cancelled, and there is no evidence that any Avro 521 other than the prototype (which crashed at Upavon on 21 September 1916) was built.

  Take-off weight905 kg1995 lb
  Empty weight522 kg1151 lb
  Wingspan9.14 m30 ft 0 in
  Length8.58 m28 ft 2 in
  Wing area24.71 m2265.98 sq ft
  Max. speed145 km/h90 mph

Tosha, e-mail, 25.02.2023 16:23

Good blog post. I absolutely appreciate this site.
Stick with it! gozo tourists


Stephanie Lawton, e-mail, 21.09.2017 18:48

Hi I work as a volunteer Exhibition Officer at the Solway Aviation Museum, Carlisle, Cumbria (Registered Charity) I would like to ask if you would give me permission to use the image of the Avro 521 in an Avro time-line I am putting together for a display next year. I would be very grateful for any help you can give me.


Garey L. Simpson, e-mail, 08.09.2007 05:09

I have acquired an original mahoghany A.V. Roe propeller and it has stamped on the outer hub the number 521 and I was wondering if it were a rare propeller. You can see my discussion and pictures in woodenpropeller.com under forums, then WW1 wooden propellers. Any comments would be appreciated.


Jonathan F Vernon, e-mail, 30.01.2007 09:01

My late grandfather and his brother trained and flew with the RFC. I have pictures and stories of /from both, indeed I interviewed John Arthur Wilson MM in his 96th year. John trained in an Avro at Crail and nearly came a cropper after the engine had been changed from a 180 HP Clerget to a 80 HP Monousopap. Crashes wer frequent, I have a couple of pictures of these, as well as a picture of William Nichol Wilson in front of his De Havilland Bomber ... he sadly died when his plane crashed over Belgium in June 1919. I am researching a film on the period and would welcome the opportunity to do further research. You may also be interested in holding a record of John Wilson's experiences which I recorded on digital audiotape before he died.


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