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).
Instrument for cold-weather starting in vehicles and its potential application for aero engines.
| Identifier | ExFiles\Box 77\1\ scan0069 | |
| Date | 10th May 1918 guessed | |
| -2- A small hole for air is provided as shown. This also serves as a vent. I was told that the wire used for the coil was soft steel but very much doubt this. The current is supplied from a 12 volt accumulator. The instrument described in the foregoing appears to me to be extremely valuable for cars being used in Canada and the northern part of North America in winter when the temperature sometimes gets to 40° below zero, and with a poor grade of petrol, makes it very difficult to start up. I suggest that where electrical starting is used for Aero Engine work, a similar or modified form of what is described above might be very useful. I also attached to Mr. Royce's copy, the H.{Arthur M. Hanbury - Head Complaints} H.{Arthur M. Hanbury - Head Complaints} Franklin Company's phamplet dealing with the above. [Signature] | ||