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).
Graph comparing the power output and back pressure of an 8-litre Phantom engine with various exhaust systems.

Identifier  ExFiles\Box 14\6\  Scan301
Date  26th February 1936
  
PHANTOM (8 LITRE)
POWER COMPARISONS WITH VARIOUS EXHAUST SYSTEMS
① OPEN EXHAUST (8.00 LENGTH PIPES FROM EACH PORT (H189/790))
② LARGE RESONANT SILENCER COMPLETE WITH SWAN NECK Hs{Lord Ernest Hives - Chair} 189/790
③ STOKES SILENCER COMPLETE WITH SWAN NECK & REAR WITH MODS DEC 3759
④ ANTI CRACKLE SILENCER COMPLETE WITH SWAN NECK (PRESENT PRODUCTION)
⑤ ORIGINAL STD PHANTOM SILENCER WITH SWAN NECK (NOW OBSOLETE)
BHP
RPM
BACK PRESS IN MANIFOLD
INS Hg
  
  


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