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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).
List of design modifications and their drawing status for Kestrel and Goshawk engines.

Identifier  ExFiles\Box 30\3\  Scan053
Date  19th January 1935
  
- 2 -
BY.1/G.19.1.35.

"KESTREL" ENGINE.

DES. 2296 Mixture Valve Setting (revised direction of operation) ............ Recd. 21.11.34.
Detail drawings completed and issued ........ 26.11.34.

DES. 2298 Adaption of Hamilton Controllable Pitch Airscrew.Recd. 24.11.34.
Detail drawings completed and issued ......... 19.12.34.

DES. 2299 Modification to Separated Scavenge Pumps ..... Recd. 26.11.34.
Detail drawings completed and issued ........ 3.12.34.

DES. 2301 Operating Pump for Hamilton Controllable Pitch Airscrew ............................... Recd. 28.11.34.
Detail drawings completed and issued ......... 19.12.34.

DES. 2302 Adaptation for Hamilton V.P. Airscrew Oil Pipe Connections to Pressure Pump Casing ......... Recd. 28.11.34.
Detail drawings completed and issued ........ 7.12.34.

DES. 2308 Oil Pump Driving Gear ................. Recd. 8.11.34.
Detail drawings completed and issued ......... 11.12.34.

DES. 2319 Modified Cylinder Liner Clamp ............. Recd. 17.12.34.
Detail drawings completed and issued ......... 20.12.34.

DES. 2334 Automatic Mixture Control Mixture Valves ....... Recd. 7.1.35.
Detail drawings are in hand.

DES. 2312 Automatic Mixture Control Modfn. to Throttle Lever. (Pilot) ..................... Recd. 14.12.34.
Detail drawings completed and issued ......... 18.12.34.

LeC. 4195 Ribbed Piston for use with Steel Penthouse Head.Recd. 13.11.34.
Detail drawings completed and issued ........ 14.12.34.

"KESTREL" & "GOSHAWK" ENGINES.

DES. 2305 (2 Spd. Supercharger). Modified Operating Mech. for Roller Clutch ...................... Recd. 7.12.34.
Detail drawings completed and issued ......... 31.12.34.

DES. 2324 (2 Spd. Supercharger). Controls - to suit modified operation of Roller Clutch ........... Recd. 18.12.34.
Detail drawings completed and issued ......... 31.12.34.

DES. 2317 (2 Spd. Supercharger). Modified Control Fork Sleeve.Recd. 10.12.34.
Detail drawings completed and issued ......... 31.12.34.
  
  


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