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 on the Dorris Scheme and hot-spot throttle for the 49-GB car.
| Identifier | ExFiles\Box 50\3\ Scan263 | |
| Date | 26th March 1923 | |
| X4305 Mr. Hives from GWH. {George W. Hancock - Head Chateauroux} 26.3.23. 49-GB CAR. Tests to prove whether Dorris Scheme is required with Hot-spot throttle. Amount of petrol collected 1.625 C.I. in aux. tank after starting up from cold. GWH. {George W. Hancock - Head Chateauroux} | ||