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).
Placement of casing bolts on Spectre and Wraith gearboxes.
| Identifier | ExFiles\Box 94\1\ scan0050 | |
| Date | 29th October 1934 | |
| X 328 4694 To BY.{R.W. Bailey - Chief Engineer} Copy to Mr. E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair} Per Mr. HMG. Rm{William Robotham - Chief Engineer} HDY.{William Hardy}2/MN.29/10/34. SpectreCodename for Phantom III & Wraith Gearboxes. Casing Bolts. With regard to the bolts holding the two halves of the casing together, as designed by us, some had the nuts at the front and some at the rear. We find by trial on a SpectreCodename for Phantom III casing that they can all have the nuts at the front, and we should be glad if you would alter the instructions accordingly. The same should be possible on the Wraith but if this is found not to be so from the detail drawings already made, will you kindly let us know. HDY.{William Hardy} | ||