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).
Blueprint comparing two designs for Phantom II intake resonance silencers for a semi-expanding carburetter.
| Identifier | ExFiles\Box 152\3\ scan0102 | |
| Date | 28th November 1932 guessed | |
| HS{Lord Ernest Hives - Chair} 781 P.II INTAKE RESONANCE SILENCERS FOR SEMI-EXPANDING CARBURETTER. Diagram ① Dimensions: 5.625, 9.50", 2.625, 2.437, 4.0", 8.00" 20 .250 DIA HOLES 20-.5 DIA HOLES CAPACITY OF RESONANCE PORTION OF SILENCER: 139 CU. INS POWER LOSS: 6 B.H.P. ON 160 B.H.P. AT 3500 R.P.M Diagram ② Dimensions: 2.5", 2.687, 5.875, 8.00" HOLES AS ① CAPACITY OF RESONANCE PORTION OF SILENCER: 170 CU. INS. POWER LOSS: 1% AT 3500 R.P.M. P.II. | ||