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).
Confirming the decision to produce a Myth engine and requesting work to begin on the pistons.
| Identifier | ExFiles\Box 109\3\ scan0069 | |
| Date | 23th February 1941 | |
| 700 1030 To Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} from Rm.{William Robotham - Chief Engineer} Will you please note that it has now been agreed that we are going to make a Myth engine, and that the first unit to be completed will be the 10 h.p. Will you please put in hand 10 h.p. and 12 h.p. pistons, as far as possible scaled down from the lightened type we have been developing for the Senior Range. Rm.{William Robotham - Chief Engineer} | ||