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).
Proposal to lighten the Phantom II exhaust valves.
| Identifier | ExFiles\Box 131\4\ scan0340 | |
| Date | 5th July 1937 | |
| To By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c.c. to Hd.{Mr Hayward/Mr Huddy} 113 Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}11/AP.5.7.37 PHANTOM II. EXHAUST VALVES. In reply to your memo By.7/G.3.7.37 with regard to the proposal of lightening of the exhaust valves E.85505 by going back to the original stem diameter but retaining the heavy head, we consider that this should be held up pending further information which we are expecting from GWH.{George W. Hancock - Head Chateauroux} on this subject. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||