North American Mustang P-51 Long-Range Fighter (Profiles of Flight) by Martin Bowman.pdf

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First published in Great Britain in 2011 by
PEN & SWORD AVIATION
An imprint of
Pen & Sword Books Ltd
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Copyright © Dave Windle & Martin W. Bowman, 2011
9781783461158
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Table of Contents
Title Page
Copyright Page
NORTH AMERICAN P-51 MUSTANG
PROFILES OF FLIGHT - P-51 MUSTANG P-51A, P-51B, P-51C, TP-51B, P-51D, TF-51D, P-51K
N ORTH A MERICA N P-51 MUSTA N G
The Mustang story begins in April 1940 when British Direct Purchasing Commission officials
visiting America sought a new long-range fighter to supplement the Spitfire and Hurricane. A number
of US aircraft manufacturers were called to a conference in New York on 5 April and the delegates
included James H ‘Dutch’ Kindelberger, president of North American Aviation Incorporated, who
was accompanied by the company’s executive vice-president, J. Leland Attwood. When Curtiss-
Wright Corporation offered to supply the Curtiss H-87 (P-40D), which was already in production, it
was suggested that North American could ease the supply problem by assisting in production of the
aircraft. Then Kindelberger offered to design and build a new and infinitely superior fighter
specifically developed to meet the British requirement using the same 1,150-hp Allison V-1710-39
engine. The British Purchasing Commission accepted their proposal but the contract also called for
various types of other fittings and armament to be provided by the British, who specified that the cost
of each aircraft should not exceed $40,000. North American’s only previous experience in fighter
design and construction was limited to the NA-50A, which had been designed in 1939 for Siam (now
Thailand). However, Kindelberger had studied accounts of air combat in Europe and he had already
conceived the broad outlines of a new combat-worthy fighter, designated NA-73. Also, much useful
technical data was obtained from the Curtiss-Wright Corporation. The first prototype was not built
from production drawings, but rather from design layouts so that a faster rate could be achieved. All
told, 3,500 original drawings were required, in addition to a wind-tunnel test programme and a
structural test programme, which had to be virtually completed prior to the first flight. The design
and production team worked sixteen hours each day, six days a week, finishing at 1800 hours.
Mustang Is of 168 Squadron RAF at Odiham in 1942. (via Harry Holmes)
Kindelberger and Attwood called a meeting of the design team at North American, including:
Raymond H. Rice (chief engineer); chief design engineer, German-born Edgar Schmued, who had
previously worked for Fokker and Messerschmitt; E. J. Horkey (aerodynamicist); and Ken Bowen
(project engineer). Arthur G. Patch and John F. Steppe were to oversee wing and fuselage design
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