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).
The failure of a standard Marston Radiator during bumping tests.
| Identifier | ExFiles\Box 1\7\ B001_X15 20 46 50 59-page188 | |
| Date | 11th August 1919 | |
| R.R. 235A (500 T) (S.D. 408. 28-4-17.) Bm. 2/156/13. To EH. From EH. C.c. to EH. EHS/LG11.S.19. 11th. Aug. 1919. X 46 X.3456 RE MARSTON RADIATORS. We have been bumping the standard Marston Radiator similar to those being used on production. We have obtained very much worse results than we did with a similar radiator we tested previous to the War. One leak started after 4 hours bumping and 2 more leaks started after 6 1/2 hours bumping. One leak is due to a tube collapsing or else it was originally a faulty tube. We suggest that we should send this radiator back to Marstons and send a man over to see it dismantled and see why it was failed. He could also see whether they are keeping to our specification as regards tubes. We think this failure is very serious because the result we have obtained is no better than our old radiators which gave us endless trouble on the road. EH. | ||