The Goshawk 11 friction flywheel hub design and withdrawal tooling.
| Identifier | ExFiles\Box 46\1\ Scan007 | |
| Date | 1st July 1922 | |
| X4083 E. {Mr Elliott - Chief Engineer} from Hs. {Lord Ernest Hives - Chair} Hs {Lord Ernest Hives - Chair} 5/LGG.7.22. GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11. TOOL KIT. X4083 The details of the friction flywheel hub which is fixed to the crankshaft shows a radius and chamfer. It was not appreciated that the collar was left for withdrawing purposes. We still consider that it would be a more satisfactory job to have this part threaded. I think you are optimistic when you mention a Garages being provided with withdrawing tackle. There is also a row of studs which we think would most probably foul any standard withdrawing tackle. Hs. {Lord Ernest Hives - Chair} | ||
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).