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).
Heat test results for Chassis 774, detailing temperature changes under different running conditions.
| Identifier | ExFiles\Box 75\4\ scan0001 | |
| Date | 26th September 1908 | |
| R.R. 148 (g u) (M.C. 6599. 16.3.08) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 5639. 3500 Heat Test. Chassis 774. Sept 26/08 X879 Atmosphere temperature. 2. 15 pm. Shop 65° F.{Mr Friese} 19° C. 2. 30 " Sun. 69° F.{Mr Friese} 19° C. Mls running 2 69° F.{Mr Friese} Underneath footboards windows closed 58° C. 12 " 69° F.{Mr Friese} " " " 65° C. 24 " 70° F.{Mr Friese} " " " 68° C. 30 " 68° F.{Mr Friese} windows open. 60° C. 40 " - " " 59° C. Running in shop 15 min. Sat night windows open 70° C. Suggest testing this with longer run & closer atmosphere. Lowe Mr. Platford's remarks - Surrounded by 19° C. Rise Heat test on Palmer's With windows closed 68. 49. chassis 774 with present " open Dropped 60. 41. type radiator | ||