Graph comparing various engine temperature readings with radiator shutters operating normally versus held open.
| Identifier | ExFiles\Box 11\5\ 05-page064 | |
| Date | 17th April 1934 | |
| 28-EX. TEMPERATURE TESTS. VARIATION IN TEMP. RAD. SHUTTERS OPERATING NORMALLY AND HELD OPEN. OIL TEMP. WATER TEMP. AIR TEMP UNDER BONNET. REAR EXHAUST SIDE. ATMOS. TEMP. TEMPS TAKEN EVERY MILE DURING RUN OF TWENTY MILES AT 60 M.P.H. TEN MILES EACH WAY. SHUTTERS NORMAL. SHUTTERS HELD OPEN. | ||
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).