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).
Test report for the 11-EX New Phantom with a Weymann body.
| Identifier | ExFiles\Box 71\3\ scan0138 | |
| Date | 23th March 1926 | |
| COPY. TEST REPORT - 11-EX. NEW PHANTOMCodename for PHANTOM I. WEYMANN BODY. Consec. Day. | Agg. Mileage. | Total Running Hours. | Average Speed. | Date. 76 | 13,718 | 501 35/60 | 21 | 23.3.26. MILEAGE. Start. | Finish. | Days. 5066 | 5224 | 158 PETROL. Start. | Added. | Finish. | Used. 13 | 14 | 11 | 16 Oil added. | Oil M.P.G. | Petrol M.P.G. | Running Hours. 1/4 gall. | 1200 | 10 | 7 30/60 Route, condition, etc. involuntary stops. Adjustments, work done. Remarks on running, etc. Piacenza to Florence. Road surface very bad, pot holes, and much rain and mud. Great deal of hill climbing. Engine running well. (Sgd.) P.N. Drivers Henry Boot. | ||