Fortnightly progress report on experimental work for various chassis and engines.
| Identifier | ExFiles\Box 76\2\ scan0209 | |
| Date | 31th July 1920 | |
| PROGRESS OF EXPERIMENTAL WORK FORTNIGHT ENDING 31.7.20. Particulars. | Type of chassis or engine. DESIGNS OR INSTRUCTIONS RECEIVED FROM W.W. Oil Relief Valve to LeC.1251. | Buzzard(Aero Engine). Particluars of Body and New Design of Instrument Board to LeC.1254. | 40/50 Crankshaft to LeC.1255. | Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine). DESIGNS CARRIED OUT AT DERBY. Rear Springs - Calculations and drawings. | 40/50 Petrol Tank with Side Filler, Indicator and Reserve Compartment. | " Temporary Spare wheel Carrier - modifications. | " R.R. Dynamo (made from starter motor parts) | " Smith Dynamo Suspension --3/19 Gear Box. | " Distribution Board for use with Smith Dynamo. | " Double Thrust in Rear Axle. | " Helical Constant Mesh Gear in old gear box. | " Mr. Claremont's Freewheel. | " Induction Pipes and Carburetter. | Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)). Brake Gear. | " General Arrangement of Engine. | Eagle(Aero Engine). Back Axle (completed) | Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine). DETAILS OF EXPERIMENTAL PARTS ISSUED BY PRODUCTION D.O. Rear Engine Feet. N.sch.363/388 - complete. | 40/50 Rear Springs. N.sch.391 - complete. | " Modification to Rear Shock Absorber N.sch.383 - complete. | " Spare Wheel Carrier. N.sch.501/225 - complete. | " Brackets rivetted on Axle Tubes - complete. | " Crankshaft - complete. | Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)). Idler Gear - complete. | " Valves & Fittings - complete. | " Oil Fittings - complete. | " Crankcase & Bearings - complete. | " (Contd) | ||
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).