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).
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 PHANTOMCodename 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} | ||