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).
Listing proposed improvements and performance figures for the L.H. Phantom II chassis for the American market.
| Identifier | ExFiles\Box 19\3\ Scan087 | |
| Date | 11th November 1929 | |
| x7772 cc. [REDACTED] [REDACTED] Hs.{Lord Ernest Hives - Chair} From Oy. L.H. PHANTOM II. CHASSIS. I have listed below a number of items which I believe have not been embodied in the present drawings for L.H. Phantom Chassis, but which we consider should be embodied in an imported chassis intended for American use. Have done my best to list these roughly in order of importance. On some, or all of these, it will be necessary of course to obtain Mr.Royce's approval. However, I have thought it best to hand the list to you first for your consideration, and would like to discuss it with you before I leave. Several of the items have been discussed with Mr.Royce, Mr.Hives and others. 1. Quick Warming-Up. Should be almost instantaneous as on Phantom I. Mr.Hives has this in hand. The speed of warming-up under idling conditions is much less important than the warming-up under level road running conditions at about 20 m.p.h. Normally, every car is operated in all weathers, immediately after starting the engine. 2. Performance. It can be taken that normal performance necessary for American light-controlled traffic conditions is 10 to 25 m.p.h. in 6 secs. 10-50 m.p.h in 15 secs. This refers to a normal five passenger closed car on high gear. The best we could show on American Phantom I. is - 10 to 25 m.p.h in 6 secs. - 8 1/2 secs. 10 to 50 m.p.h in 18 secs. This with a total weight of 5950 lbs. On a Phantom II. with test-body and water-heated intake, weight 5800 lbs. total, Mr.Maddox and I obtained - 10 to 25 m.p.h in 6.75secs. 10 to 50 m.p.h in 19.5 secs. This would probably improve with use of car and a normal body with less windage. The important point is that neither car reaches the American requirements for sufficient performance to keep well ahead of Contd:-- | ||