Rolls-Royce Archives
         « Prev  Box Series  Next »        

Status report on modifications for Kestrel, P.V.XII, Buzzard, and Spectre aero engines.


Identifier  ExFiles\Box 30\4\  Scan254
Date  16th July 1934 guessed
  
(7)
ITEM DESCRIPTION.
-----------------------------------------------------
KESTREL(Aero Engine) ENGINE - CONTINUED:-
---------------------------
Strengthened bottom half crankcase. Completed.
Modified caps for forked connecting rods. Completed.
Single piece cylinder block with extra joint studs. Completed.
Oil pipe to supercharger - Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 2 speed supercharger applied to Kestrel(Aero Engine). Completed.
Revised gas starter distributor and drive. Completed.
Fuel pump relief valve - twin. Completed.
Modification to forked connecting rod - lightened rod. Completed.
Redesigned automatic mixture control.(Kestrel(Aero Engine) VI) In hand.

P.V.XII ENGINE.
---------------
Shape of crankcase sections for installation. Completed.

BUZZARD(Aero Engine) ENGINE.
--------------
Fuel pump relief valve - twin. Completed.

SPECTRE(Codename for Phantom III) (AERO ENGINE)
---------------------
Installation Drawing. In hand.
  
  
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).


Copyright Sustain 2026, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙