This is one of the best cut-aways of the P51 that
I have yet run across. It is from a new book by 
Daniel D. Witney. Vee's For Victory. The Story
Of The Allison V-1710 Aircraft Engine 1929-1948.

This is one of the best engine books I have yet run 
across. 500 pages 8.5 by 11 many glossy photos,
drawings and graphs. Lots of engineering stuff as well
as history of every airplane the Allison was installed
in. Lots of stuff on ducts and turbochargers.
Great book. Highly recommended $59.95.
Schiffer Military History Atglen, PA.
ISBN 0-7643-0561-1
Published in 1998.

The P51 rad duct at this point is still not up to modern 
standards according to  Kuchemann & Weber's book 
"The Aerodynamics Of Propulsion".

There will be separation and slowed flow through the
rad near its top. The bottom wall of the duct looks 
good. The back top wall needs to be strighter
for a while... behind the rad. It would also work
better if the air was dumped out under the stab.
 
Paul Lamar
 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

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