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).
Secret memorandum about a modification to the Spectre connecting rod bolts to prevent stretching.
| Identifier | ExFiles\Box 93\1\ scan0114 | |
| Date | 17th August 1935 | |
| X314 To- BY.{R.W. Bailey - Chief Engineer} c. RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} SECRET. re SpectreCodename for Phantom III Con Rod Bolts. We agree to the proposal from RHC.{R. H. Coverley - Production Engineer} to delete the undercuts in the shank ofnthe forked connecting rod bolts in order to overcome the stretching when tightening up. We send you herewith LeC.4646 showing a modification. No more engines should be fitted with the old design and the others should be changed over when it is convenient. E/JNR.{Charles L. Jenner} | ||