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).
The preparation of two different bonnet types, one welded steel and one riveted aluminium, for the 25-EX car.
| Identifier | ExFiles\Box 12\7\ 07-page149 | |
| Date | 10th January 1931 | |
| RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} x7260. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}3/MJ.10.1.31. BONNETS. Sg.{Arthur F. Sidgreaves - MD} has asked us to prepare two bonnets - one of sheet steel welded, thus eliminating all the rivets, the second of aluminium with counter-sunk rivets everywhere except on the hinges. In view of his request we think that we should at least make an attempt at the latter, though we do not anticipate that it will be very satisfactory. We should like these bonnets preparing for 25-EX. car. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||