The average mechanical gain of an agreed servo system.
| Identifier | ExFiles\Box 73\1\ scan0128 | |
| Date | 26th March 1924 | |
| L9210 26/3/24 Day Camachea W W Average mechanical gain with agreed servo one point eight with one of this is direct pedal pressure, report sent today Hives | ||
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).