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).
Letter thanking for a drawing of a P.3 unit and requesting its power curve.
| Identifier | ExFiles\Box 90a\6\ Scan221 | |
| Date | 17th April 1939 | |
| 262. 53, BERKELEY COURT, N.W.1. WELBECK 5010. April 17th/39. Dear Ben, Many thanks for the drawing of P.3 unit, I think it will be all that we require, if it isn't I will let you know. I should be so glad if you will let me have a power curve of this unit, as I should like to make arrangements for the year | ||