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).
Modifications to the cylinder block, piston, and inlet valve dimensions.
| Identifier | ExFiles\Box 134\2\ scan0101 | |
| Date | 12th February 1937 guessed | |
| -2- In order to avoid re-studding the cylinder block distance pieces are required to make up the height of three of the stud bosses. The inlet valve cannot be opened appreciably earlier than on the existing design without fouling the piston but a gashed piston may be used at a later stage. Provision has been made for opening out the inlet valve from 1.750" diameter to 1.850" diameter. Will you please send a print of this LeC. to Rm.{William Robotham - Chief Engineer} in addition to the usual prints. E/PSN. Att: LeC.5368. | ||