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).
Identifying Vospers of Portsmouth as another builder of speed boats in England.
| Identifier | ExFiles\Box 146\5\ scan0124 | |
| Date | 20th March 1939 | |
| 1245 W/S. Sr. from Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}1/R.20.3.39. Replying to your Sr/Dn2/MLG.18.3.39., the only other people in England that I know of who make speed boats are, Vospers of Portsmouth. Up to date they have been using Isotto Frachini engines. Rm.{William Robotham - Chief Engineer} | ||