List of special parts and features fitted to a specific car.
| Identifier | Morton\M1.2\ img003 | |
| Date | 11th May 1922 | |
| 7 GU Special features Hy. {Tom Haldenby - Plant Engineer} from Hs. {Lord Ernest Hives - Chair} c. to RP. c. to BY. {R.W. Bailey - Chief Engineer} c. to E. {Mr Elliott - Chief Engineer} c. to Ds. ORIGINAL Hsl/LG11.5.22. 7-GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11. Y4026 The special parts fitted to this car are as follows:- 1. R-W Wire Wheels. 2. Damping Ring fitted to brake drums. 3. Woodhead design of springs - all round. 4. Rear shock absorbers single stage - 60 lbs. 5. Oil Pump fitted with fellows cut gears. 6. Rocker arms - rollers given extra clearance. 7. Stronger rotor for high tension distributor. 8. Wefco Gaiters to springs and shackles. * 9. Clutch springs - 120 lbs. 10. Special washers to bolts holding undershield. Hs. {Lord Ernest Hives - Chair} | ||
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).