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 a run from London to Derby and associated faults.
| Identifier | ExFiles\Box 71\3\ scan0059 | |
| Date | 31th December 1925 | |
| Hs.{Lord Ernest Hives - Chair} COPY. CJ. 48900 TEST REPORT - 11-EX - NEW PHANTON. WEYMANN BODY. Consec. Day.: 12 Agg. Mileage.: 1991 Total Running Hours.: 71 20/60 Average Speed.: 30.4 (Days) Date.: 31/12/25 MILEAGE. Start: 785 Finish: 969 Days: 184 PETROL. Start: 10 Added: 10 Finish: 3 Used: 14 Oil added.: 1 Pint (Total) Oil M.P.G.: 8392 Petrol M.P.G.: 10.6 Running Hours.: 6 Route, condition, etc; involuntary stops, adjustments; work done; remarks on running, etc. London, Grantham, Nottingham, Derby. Test runs at Derby. Roads good. Fine and dry. Stopped owing to No. 11 tappet seizing. This was released by slight blow with mallet and thereafter gave no further trouble. Is now being examined. Steering stiffened up seriously during run out but became free during 1 1/4 hours rest at lunch. It is always stiff after 100 miles running. This is a serious fault. Drivers CWB. and Hs.{Lord Ernest Hives - Chair} Otherwise car running well. The 145 miles from London to Derby was done at average of 37.8 m.p.h. (Sgd.) CWB. | ||