Progress report on experimental work for the fortnight ending 2nd July 1921.
| Identifier | ExFiles\Box 76\2\ scan0285 | |
| Date | 14th July 1921 | |
| R.R. 235A (100 T) (S.H. 798. 10-12-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2947 14.7.21. PROGRESS OF EXPERIMENTAL WORK FORTNIGHT ENDING 2ND. JULY. 21. DESIGNS AND INSTRUCTIONS RECEIVED FROM W.W. LeC.1406/7 - Dashboards "B" and "D" type. Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11 LeC.1408 - Engine Starting Switch Pedal. " " LeC.1409 - Crankcase Modification. " " LeC.1410 - Ballast Resistance. " " LeC.1411 - Starter Switch Addition. " " LeC.1412 - Ignition Wiring. " " LeC.1415 - Exhaust Choke Valve & Control. 40/50. DESIGN WORK CARRIED OUT AT DERBY. Battery Box Suspension. Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11 Battery Terminal Boxes. " " Rear road spring front anchorage. " " Modified rear spring aft anchorage for Oilless bearings. " " Rear road spring bearings with Alemite Lubricators. " " Modification to starter motor (two coils in parallel to turn engine faster). 40/50 Prop: Cylinder and Piston. Condor(Aero Engine). Arrgt. of Connecting Rods 13 1/4" centres. " Modified Reduction Gear. " Reduction Gear .444 reduction. " Revised Crankcase. " Experimental Induction Pipe. " DETAILS OF EXPERIMENTAL PARTS ISSUED BY D.O. Hand Brake Equalizing Gear N.sch.917 Details completed. Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11. Foot brake equalizing Gear. N.sch.917. " " " " Side Steering Tube N.sch.916. " " " " Front axle & cross steering tube. N.sch.906/7. " " " " Steering Column & Box N.sch.909 part details issued. " " 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).