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 performance data and driver remarks.
| Identifier | ExFiles\Box 71\3\ scan0069 | |
| Date | 9th January 1926 | |
| HS{Lord Ernest Hives - Chair} OJ V8900 COPY. TEST REPORT - 11-EX - NEW PHANTOMCodename for PHANTOM I. WEYMANN BODY. Consec Day. Agg. Mileage. Total Running Hours. Average Speed. Date. 19 3153 109 33.2 (Days) 9.1.26. £ MILEAGE. PETROL. Start. Finish. Days. Start. Added. Finish. Used. 1990 2131 141 0 20 6 14 Oil added. Oil M.P.G. Petrol M.P.G. Running Hours. ✓ 3540 10.0 4½ Route, condition, etc; involuntary stops; adjustments; work done; remarks on running, etc. Testing at Derby after alterations to front axle and re-setting clutch stop. Derby, Leicester, Northampton. London. No rain. Roads good. Steering much improved. No wandering. some stickiness. Brakes good. Clutch now stops when hot. Noisy tappet cured by change. Some popping in exhaust. Drivers CWB. | ||