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 detailing designs and performance data for PII Resonance Silencers for a Semi Expanding Carburetter.
| Identifier | ExFiles\Box 102\1\ scan0099 | |
| Date | 28th November 1932 guessed | |
| B P II RESONANCE SILENCERS FOR SEMI EXPANDING CARBURETTER. HS{Lord Ernest Hives - Chair} 780 ③ 3.5" 10.25 0.2813 5.875 2.813 HOLES AS ① & ② CAPACITY OF RESONANCE PORTION OF SILENCER: 300 CU. INS. POWER LOSS: NIL ON P II ④ 6.5" 15.0" 7.0" 2.687 5" 4.5" CAPACITY OF RESONANCE PORTION OF SILENCER: 240 CU. INS POWER LOSS 12 .5" DIA. HOLES -> 2.687 DIA. INTAKE, 1.3 B.H.P AT 3500 R.P.M. 24 .5" DIA. HOLES -> 2.562 DIA. INTAKE, 2.7 H.P. AT 3500 R.P.M. | ||