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).
Requesting a comparison between the experimental 'Hawk' Northcliffe chassis and a production model to evaluate proposed modifications.
| Identifier | Morton\M22\ img120 | |
| Date | 8th September 1920 | |
| 1 EX & 6EX SIGNIFICANCE ORIGINAL R/R1 C26-9-20 RECEIVED o+VRG/X66/9/20 8 SEP 1920 T.P.L To: H.S. from R.{Sir Henry Royce} Copy to: C.S. X.3408 RE "HAWK" NORTHCLIFFE CHASSIS ETC. X.3706 06-P-2 I shall be glad if you will arrange to bring or send to Peterboro' for September 27th, the "Hawk" Northcliffe chassis, or a present production chassis, so that I can compare it with 1 EX. which I take to represent what we consider a production chassis should be. It will be understood that you will be engaged in perfecting 6 EX. as a model for the next change in production. The modifications, however, will not affect the running in any other way but the lower geared back axle. The model to follow this would be the three speed 5 EX box, modified starter, slightly lengthened propeller tube, central speed change levers. This latter and its "left hand" equivalent will complete the series of modifications we intend to apply to the present chassis. R.{Sir Henry Royce} 1 EX - typical of Post war Cars 1 to 1000 6 EX typical of chassis 1,001 onward Ref E1 G28-9-20 5 EX FINAL Projected mods to 40/50 - NOT CARRIED OUT. | ||