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).
Typed note regarding power loss from leakage past rings being inversely proportional to engine speed.
| Identifier | ExFiles\Box 74\4\ scan0150 | |
| Date | 20th August 1910 guessed | |
| Wor{Arthur Wormald - General Works Manager}/EH3/L19515. 3. 156 rings, and that the loss of power caused by leakage would always be inversely in proportion to the speed. E.H. [Watermark: HYDEVACHOKPA 1809 DICKINSON BOND] | ||