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 failure of 2.BA bolts used to retain guide tubes for the Goshawk 11 gearbox selector fork.
| Identifier | Morton\M1.1\ img091 | |
| Date | 26th October 1921 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to BY.{R.W. Bailey - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to EP.{G. Eric Platford - Chief Quality Engineer} ORIGINAL. Hs{Lord Ernest Hives - Chair}4/LG26.10.21. GOSHAWK 11. x4247 x4219 GEAR BOX. We have had one of the long 2.BA bolts which are used to retain the tubes which act as guides for the selector fork, break. We consider that 2.BA bolts are not a practical size. When the bolt fails there is nothing to prevent the tube sliding right out and getting into the clutch. * Hs.{Lord Ernest Hives - Chair} | ||