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).
Graph comparing crankcase breather pressures at various speeds for different breather configurations.
| Identifier | ExFiles\Box 132\3\ scan0114 | |
| Date | 30th August 1938 | |
| 286 VI CRANKCASE BREATHER PRESSURES M.P.H INCHES OF WATER (-ve) A.{Mr Adams} STANDARD BREATHER B. BEDFORD TYPE ON STANDARD PIPE C. R.R. VENTURI AT FRONT OF CAR D.{John DeLooze - Company Secretary} R.R. VENTURI AT FRONT OF CAR, FRONT OF VENTURI SAWN OFF E.{Mr Elliott - Chief Engineer} STANDARD BREATHER WITH SHIELD F.{Mr Friese} RR. VENTURI FITTED ON STANDARD PIPE GAUGE FITTED IN TOP OF BREATHER BY OIL FILLER WB{Mr Brazier/Mr Bell} | ||