Required modifications to a plunger spring for the New Phantom side lever mechanism.
| Identifier | ExFiles\Box 68\1\ scan0117 | |
| Date | 17th November 1925 | |
| X 8450 To C. Hs. {Lord Ernest Hives - Chair} from RHC. {R. H. Coverley - Production Engineer} RHC {R. H. Coverley - Production Engineer} 12/BE. 17.11.25. RE NEW PHANTOM(Codename for PHANTOM I) SIDE LEVER MECH: N.S.2079 With reference to the Improved Change Speed Mechanism to N.S. 2079. We omitted to mentioned in our RHC {R. H. Coverley - Production Engineer} 11/BE. 28.10.25. when dealing with Spring for Change Gear Shaft that Plunger Spring G.72968 used in Selector Shaft should also be modified. The Spring as used on Experimental cars is as follows:- Free Length .875. Dia. of Wire .036 (20 SWG) Complete Coils - 6. Load required to compress to .550 - 2.5 lbs. Would you therefore issue the necessary alterations. RHC. {R. H. Coverley - Production Engineer} | ||
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).