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).
Progress report on experimental work for the fortnight ending 18th June, detailing designs, work carried out, and parts issued.
| Identifier | ExFiles\Box 76\2\ scan0282 | |
| Date | 24th June 1921 | |
| R.R. 225A (100 T) (S.H. 79S. 10-12-20) G 2947 X272 PROGRESS OF EXPERIMENTAL WORK FORTNIGHT ENDING 18TH. JUNE. DESIGNS AND INSTRUCTIONS RECEIVED FROM W.W. LeC.1403 - Bonnet Catch. Goshawk 11 LeC.1404 - Starter Motor Switch. " LeC.1405 - Proportions of RR Dynamo and Motors. Goshawk 1&2 DESIGN WORK CARRIED OUT AT DERBY. Throttle & Ignition Control Quadrant. Goshawk 11 Starting Handle. " Klaxon Push Button Switch on Steering Column. " Side Steering Tube. " Steering Joint on Pendulum Lever. " Hand & Foot Brake Compensating Gear. " Modification to Cylinder Valves. Condor. Modified Oil Holes in Crankpins. " Modification for Lightening Propeller Hub. " DETAILS OF EXPERIMENTAL PARTS ISSUED BY D.O. Piston LeC.1395/1399. Details completed. Goshawk 11 Carburetter LeC.1386 Further details issued. " Crankshaft. Further details instructed which complete this section " Crankcase & Bearings LeC.1394 Further details. " Cylinder. LeC.1396/1388/1391. Further details which complete this section. " Radiator.. LeC.1383. Part details. " Exhaust Fittings. N.sch.684/686/814. Further details which complete this section. " Governor Drive for Ignition. LeC.1393/4. Details completed " contd:- | ||