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 memo discussing the weight and inertia of a new clutch and flywheel, with a request to reduce its weight and cost.
| Identifier | Morton\M3.2\ img017 | |
| Date | 13th March 1925 | |
| TO AJS. HS.{Lord Ernest Hives - Chair} } [Struck through] BY.{R.W. Bailey - Chief Engineer} } [Struck through] FROM R.{Sir Henry Royce} SECRET. R2/M13.3.25. Copy to GJ. [Struck through] " " RG.{Mr Rowledge} [Struck through] " " BA. [Struck through] E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. CLUTCH & FLYWHEEL. 48300 I understand that this unit is:- (1) 80 lbs. heavier than present 40/50., and (2) Has 25% more inertia, (which is good, but perhaps unnecessary.) Will AJS. look into this to see if we can reduce (1) considerably, but only alter (2) down to the same as the 40/50., and also at the same time reduce the cost of materials or machining. We must keep on the lookout because vibration (torsionally) in the transmission may be more manifest with less inertia in the flywheel. R.{Sir Henry Royce} | ||