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 the Spectre bumper due to loose shock damper bolts and a suggestion to increase bolt diameter.
| Identifier | ExFiles\Box 119\2\ scan0405 | |
| Date | 4th July 1935 | |
| X1024 To Hy.{Tom Haldenby - Plant Engineer} c. to RHC.{R. H. Coverley - Production Engineer} c. to Da.{Bernard Day - Chassis Design} c. to Hdy.{William Hardy} c. to E.{Mr Elliott - Chief Engineer} HS{Lord Ernest Hives - Chair}/Les.G/KH.4.7.35. SpectreCodename for Phantom III Bumper Failure. The cross member which supports the back end of the rear shock dampers has become loose from the frame. This is owing to a failure of two of the 1/4" diameter bolts which secure the cross member socket F.85969 to the frame. The rear of the bumper chassis has had 25 hours running with maximum damping. We suggest that the bolts should be increased to .312" diameter. HS{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} | ||