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 oil drain grooves in a governor housing for a Super Sports Engine.
| Identifier | ExFiles\Box 92\2\ scan0015 | |
| Date | 5th September 1928 | |
| V405 TWELVE SLOTS EQUALLY SPACED, THUS:- .250 ±10 2.000 DIA +10 INVERTED PLAN (E77684) OIL DRAIN GROOVES IN GOVERNOR HOUSING (SUPER SPORTS ENGINE) PRINT ROOM, 5 SEP 1928 DERBY. | ||