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Description
Characteristics
| Book cover finish | Offset varnish, Stapled |
| Special features | First edition, Numbered copy ( Series 1, No. 4 ), Original edition ( O.E. or Or.E ) |
| Condition | Used, acceptable |
| Number of pages | 24 |
| Published date | 1970 |
| Language | English |
| Collection / Series | TECHNICAL MANUAL |
| Size | 17 x 25 x 0.2 cm |
| Author | Bruce Robertson |
| Editor | KOOKABURRA TECHNICAL PUBLICATIONS |
Description
Probably no other fighter aircraft in British military service was ever subjected to security measures as rigidly as the Whirlwind, for although the prototype flew in 1938, its existence was not publicly revealed until February 1942.
( … ) The Whirlwind was born from the issue of Air Ministry Specification F.37 / 35 for a single - seat day and night fighter. Hawker Aircraft tendered in April 1936 ; Bristol put forward their type 313 and Westland their P.9 - of these all but the last named remained as projects on paper. Westland's tender to W.E.W. Petter's design was accepted and an order was placed in February 1937 for the construction of two prototypes. The project design originally was planned to have twin fins and rudders, but preliminary tests showed that the airflow over the tailplane would be turbulent, therefore the now familiar high tailplane was adopted.
