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, detailing mileage and performance.
| Identifier | ExFiles\Box 71\3\ scan0107 | |
| Date | 18th February 1926 | |
| COPY HS{Lord Ernest Hives - Chair} TEST REPORT - 11-EX - NEW PHANTOMCodename for PHANTOM I. WEYMANN BODY. Consec. Day. | Agg. Mileage. | Total Running Hours. | Average Speed. | Date. 49 | 8802 | 314 35/60 | 18.0 | 16) 17)2.26. 18) MILEAGE. Start. | Finish. | Days. 7636 | 7880 | 144 PETROL. Start. | Added. | Finish. | Used. | | | 14 1/2 Oil Added. | Oil M.P.G. | Petrol M.P.G. | Running Hours. — | — | 10 | 8 Route, condition, etc; involuntary stops; adjustments; work done; remarks on running, etc. Testing at Derby. For distance only. Petrol and time estimated. Drivers ___________ (Sgd.) CWB. | ||