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).
Confirmation of a phone message regarding India gearboxes, advising not to build them until results from modifications are available.
| Identifier | ExFiles\Box 6\4\ 04-page120 | |
| Date | 5th May 1925 | |
| SECRET. X5310 CONFIRMATION OF 'PHONE MESSAGE. WEST WITTERINGHenry Royce's home town. 5. 5. 25. TO Ed.{J. L. Edwards} FROM R.{Sir Henry Royce} {Copy to Mer.} {Copy to HS.{Lord Ernest Hives - Chair}} X5310 REGARDING INDIA GEARBOXES THESE SHOULD NOT BE BUILT UP. WE ARE AWAITING RESULTS OF THE INCREASED ANGLE OF SPLINES SQUARE AND HEXAGON SHAFT WITH INCREASED DIAMETER OF FIRST PINION. EXPECT ONE OF THESE WILL BE SUCCESSFUL BECAUSE TWO GEARS HAVE ALREADY BEEN CURED. R.{Sir Henry Royce} | ||