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).
Outlining a series of high and low speed radiator comparison tests to be conducted at Brooklands.
| Identifier | ExFiles\Box 29\3\ Scan305 | |
| Date | 4th May 1931 | |
| G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Radcliffe. From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 1788. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}2/MJ.4.5.31. X.788. X.1250. RADIATOR TESTS BROOKLANDS. High SPeed Test. Rad. Comparison. Compare small hexagon tube with large hexagon tube at 60 m.p.h. all closed. x All out " " All out Vertical louvred bonnet. xThis speed should be checked twice. High Speed Test. Bonnet Side Comparison. With small hexagon radiator, obtain a figure all out with the bonnet having three shutters/side to compare with the vertical louvres all out. Low Speed Test. Compare all your radiators i.e. Dented, Round, Square, E.81389, small and large hexagonal, at 30 and 45 m.p.h. with louvred bonnet. Repeat test with shuttered bonnet on small hexagonal radiator. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||