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).
Data sheet with weights, torques, and ratios for The Rover Company's 10.HP and 20.HP models.
| Identifier | ExFiles\Box 127\2\ scan0094 | |
| Date | 20th April 1939 | |
| RS{Sir Henry Royce's Secretary}/JM.{Mr Morley} 20th. April, 1939. THE ROVER COMPANY LIMITED. ------------------------ Weight on rear spring - 20.HP. ... 1,280 lbs. (Unladen). Weight on rear springs - 10.HP. ... 1,040 lbs. (Unladen). Maximum engine torque - 20.HP. ... 100 lbs.ft. Maximum engine torque - 10.HP. ... 68 lbs.ft. Rear Axle ratio ... 20.HP. ... 4.555 Rear Axle ratio ... 10.HP. ... 4.888 Gearbox Ratio - 1st.speed ... ... 3.4 Weight of axle complete with ... ... 280 lbs. wheels & tyres. ---oOo--- | ||