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).
The fitting and testing of an aero engine electrical speedometer, noting a missing part.
| Identifier | ExFiles\Box 165\4\ img093 | |
| Date | 1st October 1930 | |
| X1250 RHC.{R. H. Coverley - Production Engineer} from EFC. c. HS{Lord Ernest Hives - Chair}/ACL. EFCL/ADL.10.30. AERO ENGINE ELECTRICAL SPEEDOMETER. Herewith, we hand you electrical speedometer apparatus, will you please arrange for the fitting of this to a suitable F.10. engine for test. You will notice that one of the ferrules screwing on to each plug connection is missing. This was not with the apparatus when it was received, will you please arrange to make one of these. A copy of the instructions entitled "Instruction Leaflet No.48 and No.69" relating to this is attached for your information, and to Mr.Lovesay's copy we also attach a copy of the calibration record of this apparatus which comprises Generator No.49 and Indicator Mark I.A.No.15 (Starboard). EFC. Copy of instructions attached. | ||