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).
Recommendation for propeller shaft lubrication intervals for 20 HP and 40/50 HP chassis.
| Identifier | ExFiles\Box 66\4\ scan0321 | |
| Date | 14th August 1929 | |
| X 8340. To Mx.{John H Maddocks - Chief Proving Officer} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}4/MJ.14.8.29. X8340 X8340 PROPELLER SHAFTS+ ------------------ With reference to Mx{John H Maddocks - Chief Proving Officer}/McMl/T13.8.29. We recommend that the propeller shaft should be lubricated every 5,000 miles or six months. This applies to both 20 HP. and 40/50 HP. chassis. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||