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 the arrangement of a vacuum pump silencer for a super sports engine.
| Identifier | ExFiles\Box 152\3\ scan0045 | |
| Date | 17th February 1922 | |
| V526., 1.250, 1.650 DIA., .218 DIA., SIXTEEN HOLES .062 DIA., SPACED AS SHOWN., SCALE 1/2., ARRANGEMENT OF VACUUM PUMP SILENCER., (SUPER SPORTS ENGINE), UNION FOR EXHAUST PIPE FROM PUMP, WHB, 17.2.22 | ||