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).
Flywheel modifications for Phantom experiments, specifically the need for a lighter and stiffer design.
| Identifier | WestWitteringFiles\V\October1930-February1931\ Scan366 | |
| Date | 23th February 1931 | |
| HS.{Lord Ernest Hives - Chair} Z.) FROM R.{Sir Henry Royce} P.Y. ) (At Le CanadelHenry Royce's French residence.) C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} ORIGINAL R3/M23.2.31. x634 x7300. LIGHTER & STIFFER FLYWHEEL FOR PHANTOM EXPERIMENTS. Mr. Grylls says in his memo. that they proposed placing the flywheel further from the disturbing influence. I cannot see how you can do this - surely not more overhang? I have expected for a long time that you would have had a flywheel like the 25HP: (1) Lighter in overhanging parts (should put up period and reduce intensity.) (2) Stiffer in flange and back plate. If this makes no change then one would think it was crankchamber deflection. I have telegraphed this for weeks, expecting some news every day, but still there is no stiffer flywheel for P. 2. R.{Sir Henry Royce} [STAMP: HS{Lord Ernest Hives - Chair} 27 FEB 1931 RECEIVED] | ||