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).
Revised calculations for the Peregrine starter motor based on a higher starting torque.
| Identifier | ExFiles\Box 62\1\ scan0039 | |
| Date | 25th May 1932 | |
| X6134. E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Wst. c. to Ey/Rd. Hs{Lord Ernest Hives - Chair}/Wst.1/MA.25. .5. 32. PEREGRINE STARTER MOTOR. On the assumption that the starting torque (cold) of the above engine will be higher than our estimation of 300 lb ins we have revised our calculation figures taking a starting torque of 375 lb ins as a basis. In order to keep the armature resistance low however it will be necessary to have 4 brushes. We attach herewith our revised calculations. Hs{Lord Ernest Hives - Chair}/Wst. | ||