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).
Instructions from Mr Royce regarding modifications to the axle test rig dynamometer.
| Identifier | ExFiles\Box 74\4\ scan0127 | |
| Date | 7th March 1912 | |
| DYNAMOMETERS (Axle) Written by Mr Royce on March 7th 1912. Handed to T.C. on 11th March 1912. Mr Royce said - In order to test the over-run and forward drive more quickly, pulleys with double grooves should be fixed in the axle test rig at both ends, as soon as possible. x/152 | ||