Comparison between 6-Goshawk-11 and 4-Goshawk-11, listing upgrades and recommending modernization.
| Identifier | ExFiles\Box 46\2\ Scan389 | |
| Date | 10th August 1922 | |
| X4086 To R. {Sir Henry Royce} from Hs. {Lord Ernest Hives - Chair} c. to CJ. Hs {Lord Ernest Hives - Chair} 8/LG10.8.22. GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11. X4219 X4086 We should like you to run 6-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 whilst 4-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 is in London. Also, before 4-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 is returned to you from London, we would recommend that it should come to the Works to be modernized. 6-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 has the following improved parts fitted compared with 4-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11. 1. Front springs. 2. Front shock absorbers and connections. 3. Rear " " " 4. New type rockers without rollers. 5. Petrol tank with level indicator. 6. Improved Bendix Drive. 7. Improved Brake Gear. 8. Stiffer Brake Equalisers. 9. Improved axle shafts and differential. 6-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 has run between 16,000/17,000 miles. The main units have not been dismantled. 6-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 is better than 4-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 as regards absence of vibration at low speeds and also as regards steering. We will also fit to this car one of the latest side steering rods. We shall not, however, be able to fix the radius rods. If suitable to you, this car could be at W.W. on Wednesday next the 16th.inst. 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).