Rolls-Royce Archives
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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).
Schematic diagrams of two proposed gearbox designs, one with gear ratios and selector positions.

Identifier  ExFiles\Box 15\5\  Scan250
Date  7th March 1932 guessed
  
Fig II
ENGINE
PROP SHAFT
1ST
2ND
3RD
C M
NO GEARS TURNING WITH ENGINE IDLING

Fig I
ENGINE
PROP SHAFT
41
19
27
33
35
25
A
B
C
X
Y

TOP 1:1 X TO RIGHT Y TO LEFT
3RD BC 1.3:1 " RIGHT
2ND AB 2.0:1 LEFT LEFT
1ST AC 3.0:1 LEFT RIGHT

ALL SILENT GEARS. WITH 3 CONSTANT MESH PINIONS
  
  


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