Header.JPG

Avro 521

For a description of the format and data included in Production Tables, see here.

Produced Variants

Type 521
 		 Two seat fighter trainer utilizing components from various Type 504 models, including Type 504A mainplanes of reduced span.
110 h.p. Clerget powerplant.
Type 521A As Type 521 with three bay mainplanes of larger span.


Projected Variants

Type 521B As Type 521 with standard Type 504K mainplanes.

Production List Page Top
Serial Range
C/n
Type
Batch Qty
Conv.
Canc'd
Notes
 1 aircraft built by A.V. Roe & Co. Ltd., Miles Platting, Manchester to Works Order 1811. Delivered February, 1916.
 none    521  1      
 25 aircraft ordered from A.V. Roe & Co. Ltd., Miles Platting, Manchester to contract 87/A/234 for the RFC. Delivered summer 1916.
 7520 - 7544    521  1    24  See note 1
 1 aircraft built by A.V. Roe & Co. Ltd., Miles Platting, Manchester to Works Order 1811. Delivered February, 1916.
 none    521A  1      At least one built as a Type 521A.
 
Total Production
 
3
 
 
 



Production Summary

Page Top 
All Aircraft By Type
Type Built New Conv. Canc'd Total
 Type 521 3 0 24 27
  3 0 24  


Notes
  1. 25 Avro Type 521 aircraft were ordered, although it appears only 7520 was completed [2]. It is likely that all those airframes built were converted to 504Es.

Production References
  1. Avro Aircraft Since 1908, A.J. Jackson (Putnam, 1965)
  2. http://www.airhistory.org.uk/rfc/aircraft.html

top



Page Revision History Page Top

Revised at Version 1.4.0
  • Corrected 521A production.
  • Revised Note 1, deleted Note 2.

V1.4.4 Created by Roger Moss. Last updated August 2020