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).
Specification for the Heenan & Froude Joggler, noting an issue with the voltage.
| Identifier | ExFiles\Box 143\1\ scan0046 | |
| Date | 5th January 1935 | |
| To EJJ. X3269 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}11/KW.5.1.35. Herewith the specification for the Heenan & Froude Joggler, which is O.K. except for the voltage, as previously pointed out by you. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||