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).
Tests for copper strip radiator matrices and a weight analysis of the 20/25 HP radiator.
| Identifier | ExFiles\Box 105\1\ scan0197 | |
| Date | 31th January 1933 | |
| [Handwritten top: XS250] [Handwritten right: X5250. X3456.] E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Ltd. C. to Nor. C. to E.V. Hs{Lord Ernest Hives - Chair}/Ld.7/MA.31.1.33. CAR RADIATORS. We have recently been carrying out tests on copper strip types of radiator matrix blocks. The objects of changing over to this type of matrix are :- (1) To increase the cooling efficiency. (2) To decrease the radiator weight. (3) To decrease the radiator costs. Whilst investigating weights it became apparent many of the radiator parts appear excessively heavy for the job they are called upon to do. The 20/25 HP. standard radiator for instance weighs 117 lbs. filled with water). This weight is distributed as follows. lbs. (1) Matrix with starting handle bush. 36.375 (2) 2 Matrix frame side plates (brass castings.) 8.8125 (3) 2 side plates (Staybrite). 4.5 (4) Top tank with steam pipe and name plate. 11.8125 (5) Anti splash radiator cap complete. .625 (6) Bottom tank (brass casting). 7.00 (7) 14 Radiator shutter blades. 11.00 (8) Thermostat and controls... 1.25 (9) Bottom bearing plates for shutters. .6875 (10) Top bearing plates for shutters. .4375 (11) Shutter pivots, nuts and washers. .0625 (12) Water. 28.00 | ||