Fortnightly progress report on experimental work and designs being carried out.
| Identifier | ExFiles\Box 76\2\ scan0216 | |
| Date | 28th August 1920 | |
| PROGRESS OF EXPERIMENTAL WORK. FORTNIGHT ENDING 28.8.20. Particulars. | Type of Chassis or Engine. --- Lec. 1226. Connecting rods. | Buzzard(Aero Engine). " 1276. Cylinder Head. | " " 1277. Distribution board arranged for double wiring. | 40/50. Sketch of alternative device for Reserve Fuel Valve. | " Sketches of modifications to Petrol Level and Spare Fuel Devices. | " --- DESIGNS BEING CARRIED OUT AT DERBY. Petrol Level Indicator & Reserve Supply Valve. | 40/50. Power Starter - Pre-War Cars. | " Operating device for Reserve Fuel Valve alternative to the design employing Sylphon tube. | " Earthing connection,- Condenser Housing to Frame. | " Improved Battery Box Lid {A. J. Lidsey} fixing. | " Scheme for mounting engine to give torsional flexibility. | " Dynamo suspension.- 3/19 Chassis. | " Distribution board, Wiring Conduits, and Wiring System for use with Smith Dynamo and modified Glover Wiring. | " Half size arrangement of engine. | Eagle(Aero Engine). Hand & Foot Brake compensating gear. | Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)). Arrangement of Hand & Foot Brake Control. | " Clutch & Brake Pedals. | " Suggested Induction Pipes & Carburetter. | " Modification to 1911 Stdd. Carburetter Throat. | " Steering Stops. | Footboards. | Petrol Tank. | Shock Absorber. | | ||
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).