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).
Hill climb test of an exhaust heated throttle shutter on a 40/50 chassis.
| Identifier | ExFiles\Box 5\4\ 04-page013 | |
| Date | 14th July 1921 | |
| ROLLS-ROYCE LIMITED. INSTRUCTIONS. X4228 To: C.H. Hives Order No.: Customer's No.: GGS II Exhaust heated throttle shutter controlled by accelerator pedal. 40/50 Chassis, Shell 810% paraffin. Temperature & Time on Hazelwood Hill climb using 3 Test No's as base. Table of results: Headers: Temp start of climb, Temp finish of climb, Time in secs A/C, Time in mins & secs, Condition Row 1: 122°, 108°, -, 1-42, Shutter open Row 2: 56°, 56°, -, 1-40, Shutter open Row 3: 46°, 41°, -, 1-46, Choke disconnected Row 4: 46°, 250°, -, 2-8, Shutter shut off. Whole time, Knocks badly on full *Compelled to change Signed: J Olley This Sheet must be filed on completion of the work. | ||