Spectre crankshaft from No.5 Unit, noting overheating bearings and requesting a pressure test before refitting.
| Identifier | ExFiles\Box 93\5\ scan0101 | |
| Date | 31th May 1935 | |
| x 317 To RHC. {R. H. Coverley - Production Engineer} Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 8/KW.31.5.35. Spectre(Codename for Phantom III) Crankshaft out of No.5 Unit. The fact that the big end bearings on either side of the centre main bearing had showed signs of overheating indicates the possibility that the oilers on the centre main bearing might have been leaking. We do get high oil pressures on the Spectre(Codename for Phantom III) up to 80 lbs. per sq.in. Will you therefore please test the crankshaft up to 80 lbs.per sq.in. before replacing it in the engine. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||
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).