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 a fishtail exhaust adaptor for 40/50 or 25 HP models.
| Identifier | ExFiles\Box 14\6\ Scan243 | |
| Date | 22th April 1932 guessed | |
| HS{Lord Ernest Hives - Chair} 587 ADAPTOR SO THAT EITHER THE 40/50 OR 25 H.P. FISHTAIL CAN BE FITTED FISH TAIL POSITION AS ON E S7556 DRILL AS EXISTING EXP. BAFFLES .750 + .050 6 ROWS AT 60° .212 DIA 1.125 ASBESTOS BETWEEN PLATES SLIDING JOINT TO BE TIGHTENED UP BY CLIP CLIP 5 3/4 ± .125 DRILL FLANGES AS ON PREVIOUS EXP. SILENCERS ① | ||