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).
Stating the approximate weight of the S.S. Engine and Gear Box.
| Identifier | ExFiles\Box 18\1\ Scan007 | |
| Date | 29th August 1928 | |
| To Hs.{Lord Ernest Hives - Chair} from RHC.{R. H. Coverley - Production Engineer} X7840 RHC{R. H. Coverley - Production Engineer}2/BE29.8.28. S.S ENGINE Approximate weight of the S.S. Engine and Gear Box(which is fitted with a temporary Eagle IX. Carburetter) less Controls, Fan, Exhaust Pipes and Change Speed Mechanism is:- 926 lbs. RHC.{R. H. Coverley - Production Engineer} | ||