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 for an Exhaust Hot Spot Silencer.
| Identifier | WestWitteringFiles\T\2July1929-December1929\ Scan106 | |
| Date | 17th October 1929 | |
| V.721. BLANK WELDED ON. DRILL 30 HOLES .250 DIA. IN ROWS OF 3, STAGGERED AS SHOWN. EXHAUST HOT SPOT SILENCER. WELD WHERE MARKED "A". MATERIAL: SHEET STEEL 16 S.W.G. SILENCER TO BE LAGGED IN NORMAL MANNER. D&S. Dimensions: 1.000, .375, .750, 2.500, 3.000, 18.000, 12.000, 1.125 RAD, .750 DIA, 1.500. | ||