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 of two designs for Phantom II resonance silencers for a semi-expanding carburettor.
| Identifier | ExFiles\Box 179b\2\ img177 | |
| Date | 28th November 1932 guessed | |
| P.II RESONANCE SILENCERS FOR SEMI EXPANDING CARBURETTER. HS{Lord Ernest Hives - Chair} 780 ③ 3.5" 10.25" 2.813 5.875 HOLES AS ① & ② CAPACITY OF RESONANCE PORTION OF SILENCER: 300 CU. INS. POWER LOSS: NIL ON P II ④ 15.0" 7.0" 5" 6.5" 2.687 4.5" 12 .5" DIA. HOLES 24 .5" DIA. HOLES CAPACITY OF RESONANCE PORTION OF SILENCER: 240 CU. INS POWER LOSS .2687 DIA. INTAKE: 1.3 B.H.P AT 3500 R.P.M .2562 DIA. INTAKE: 2.7 H.P. AT 3500 R.P.M | ||