Progress report on experimental work for a fortnight ending on the 16th of April.
| Identifier | ExFiles\Box 76\2\ scan0268 | |
| Date | 20th April 1921 guessed | |
| PROGRESS OF EXPERIMENTAL WORK FORTNIGHT ENDING 16TH. APRIL. DESIGNS AND INSTRUCTIONS RECEIVED FROM W.W. LeC.1359 - Landauletter Body. | Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11. LeC.1370 - Petrol Tank. | " LeC.1372 - Camshaft Bearings. | " LeC.1371 - Starter Gear & Rear end of Crankcase. | " LeC.1375 - Engine rear suspension. | " LeC.1376 - Petrol Tank. | " LeC.1377 - Camshaft Timing. | " LeC.1378 - Spare wheel carrier. | " LeC.1381 - Flywheel Casing etc. | " DESIGN WORK CARRIED OUT AT DERBY. Two seater body. | Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 1 Seating position "D" type. | " Modification to Exhaust Manifold. | " II Support for steering box. | " Steering column support on dash. | " Front shock absorber. | " Position of engine in chassis. | " Hand lever mechanism for model. | " Adaption of dynamo. | " Rear road springs. | " Hand and footbrake equalizing gear. | " Adaption of starter motor. | " Method of supporting flexible conduit carrying cables to instrument board. | " Wiring diagram (Glover) series conn: main switch to actuator box. | 40/50 Insulated terminal for steering column switch. | " Bonnet side angle interlaced with Ferodo. | " Method of fitting "Livegraf" petrol indicator. | " Connection between breather and carburetter. | " Lubrication of torque sphere and universal joints. | " Modifications to R.R. tyre pump. | " Revised connecting rod - front shock absorber. | " Towing hooks (A.C. for India(Production 20 HP. with 4-speed box and Front Wheel Brakes) office) | " Rear wings (A.C. " ") | " | ||
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).