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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 comparing specifications for the Peregrine II A and proposed Peregrine B exhaust systems.

Identifier  ExFiles\Box 179b\2\  img150
Date  28th November 1940
  
PEREGRINE II A SCHEME
H.S. 722

[Drawing of exhaust system with sections labelled A, B, C, D, E, F]

Dimensions on drawing:
34.5
E.100464
LENGTH 57.375
DIA 5.00
VOL. 1120

H.P. LOSS AT 4500 R.P.M. 75 M.P.H.
14.0 B.H.P.

Table 1:
A | 1.500 °/DIA | 1.200 INSIDE | AREA | 1.13 SQ. INS
B | 1.800 " | 1.500 " | " | 1.77 "
C | 1.625 " | 12 S.W.G. (.104) | " | 1.57 "
D | 1.625 " | 14 S.W.G. (.080) | " | 1.68 "
E | 1.625 " | 16 S.W.G. (.064) | " | 1.76 "
F | NOZZLE | | | 1.8 "

Weights: 4.5, 11 LBS, 5 LBS

TOTAL WT. 55.0 LBS

PROPOSED NEW PEREGRINE 'B' SCHEME

[Drawing of a second exhaust system with sections labelled A, B, C, E, F]

Dimensions on drawing:
E.100625
27.75
LENGTH 53.35
DIA 5.5
VOL. 1270

TO BE TRIED IN 13 S.W.G. AS AN ALTERNATIVE
H.P. LOSS AT 4500 R.P.M. 75 M.P.H. 5.4 B.H.P.

Table 2:
A | 1.500 °/DIA | 1.200 INSIDE | AREA | 1.13 SQ. INS
B | 2.000 " | 1.700 " | " | 2.27 "
C | 1.875 " | 12 S.W.G. (.104) | " | 2.18 "
D | NO INTERMEDIATE PIPE
E | 1.750 °/DIA | 16 S.W.G. (.064) | " | 2.07 "
F | NOZZLE | | " | 2.78 "

Weights: 4.0, 11.5 LBS, 5.75 LBS

TOTAL WT. 49.0 LBS

EXHAUST SYSTEMS - PEREGRINE

Stamp Text:
ROYCE LTD
NOV 28 1940
DERBY
  
  


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