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).
Attached blueprints of minimum power curves for the 'Silver Ghost' and 'New Phantom' models.
| Identifier | ExFiles\Box 69\4\ scan0289 | |
| Date | 12th October 1925 | |
| c. Hs.{Lord Ernest Hives - Chair} X8771 EP{G. Eric Platford - Chief Quality Engineer}/Thn9/H12.10.25. With reference to your CWB3/LH{Mr Haworth}5.10.25. We attach herewith Blue Prints showing the minimum power curves of the "Silver Ghost" and "New PhantomCodename for PHANTOM I", both on the unit test bed and on the Dynamometer. The smaller prints are for the Silver Ghost and the larger prints for the New PhantomCodename for PHANTOM I. The curves traced out in ink show the minimum power to be developed at full range of engine speeds before the engine or chassis is passed off the unit bed or dynamometer. With regard to the M.E.P. of the "New PhantomCodename for PHANTOM I" engine between 500 and 1500 r.p.m. and similar information for the "Silver Ghost", we have asked Hs.{Lord Ernest Hives - Chair} to let us have this, but same is not yet to hand. Will Hs.{Lord Ernest Hives - Chair} please have this forwarded as soon as possible direct and let us have a copy. EP{G. Eric Platford - Chief Quality Engineer}/Thn. | ||