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).
Engine performance at 45 MPH, specifically piston inertia, crankshaft torsion, and flywheel support, along with modifications to a 6-cylinder engine.
| Identifier | ExFiles\Box 137\4\ scan0315 | |
| Date | 13th April 1931 guessed | |
| (3) His remark of the good period of 45 MPH. is correct and goes yo prove that although piston inertia is great at this speed it struck no period of flexibility of either crankshaft torsion or flywheel support. My remarks of the hopelessness of the 6 cyl. are now modified. If we get a good 6 cyl. engine it may be quite the best for J.{Mr Johnson W.M.} 3. - see other memo. R.{Sir Henry Royce} | ||