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\ scan0093 | |
| Date | 1st February 1926 | |
| COPY. 18900 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. 39 | 7011 | 241 45/60 | 27.0 | 1.2.26. MILEAGE. Start. | Finish. | Days. 5874 | 5989 | 115 PETROL. Start. | Added. | Finish. | Used. 2 | 12 | 3 | 11 Oil Added. | Oil M.P.G. | Petrol M.P.G. | Running Hours. ✓ | 6100 | 10.4 | 4 15/60 Route, condition, etc; involuntary stops; adjustments; work done; remarks on running, etc. Boulogne, Wimille etc. Boulogne, Dover, London. Roads good. Mostly dry. A { Engine running very well. Pinking not so bad (Better petrol?) Self-starter found inoperative on attempting to start up on landing at Dover. Brakes O.K. One rear wheel skid on braking on greasy tramlines. Steering stiffened up slightly. Tendency to slight wandering developing. B { Oil leak from engine casing worse. Inside of bonnet now smothered with oil. A and B will be examined at N. tomorrow. Drivers CWB. and Garner. | ||