List of technical features including a graphite block clutch, steering, radiator cowl, thermostat, and an automatic choke.
| Identifier | ExFiles\Box 173\3\ img037 | |
| Date | 4th April 1934 | |
| -2- HS {Lord Ernest Hives - Chair} /Ra.1/KW.4.4.34. (11) Graphite block clutch thrust. (12) Marles steering. (13) Radiator cowl improving efficiency 10%. (14) Thermostat bye pass type of temperature control. (15) Automatic carburetter choke for starting. HS {Lord Ernest Hives - Chair} /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).