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Status report on design modifications and developments for the Goshawk, Kestrel, and Merlin aero engines.


Identifier  ExFiles\Box 30\4\  Scan215
Date  3rd July 1934 guessed
  
- 8 -

ITEM
DESCRIPTION.

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GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) ENGINE.

Redesigned automatic mixture control. Completed.
Shaft drive for dragless mounting - propeller end. Completed.
Strengthened crankcase. Completed.
Modification to jet depressing mechanism. Completed.
Reduction gear oil pipe to suit strengthened crankcase. Completed.
Adaption of ramp head to two piece cylinder. In hand.

KESTREL(Aero Engine).

Alternative type of screwed in cylinder liner. Completed
Strengthened crankcase. Completed.
Lightened air screw reduction gear. Temporarily held up.
Modification to jet depressing mechanism. Completed.
Preliminary scheme for proposed unit for automatic mixture control (all engines). Completed.
Redesigned automatic mixture control - 1.B. engine. In hand.
Variable pitch airscrew hub. In hand.
Arrangement of pointer for gate setting. Completed.

MERLIN(Aero Engine).

Rearrangement of water pipes for mock up. Completed
  
  
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).


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