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).
Particulars of radiator tubes, including size, strength, and design.
| Identifier | WestWitteringFiles\C\February1919\ Scan14 | |
| Date | 24th February 1919 | |
| To HY.{Tom Haldenby - Plant Engineer} from R.{Sir Henry Royce} Copy to EH. WOR.{Arthur Wormald - General Works Manager} BY.{R.W. Bailey - Chief Engineer} CJ. D RECEIVED 27 FEB 1919 ORIGINAL. 24th February, 1919. R2/G25219. RE RADIATORS. I have received the particulars of the radiator tubes made by Greenwood & Batley, - thank you for your interesting memo. I am not sure whether it would be found necessary to have the 8 or 10 m/m tube. The 8 m/m tubes would be slightly thinner than the 10 m/m for the same strength of radiator. I was very pleased to hear from Mr. Olley that they (Greenwood & Batley) agree that the round ended tubes are less likely to be defective, and he also reports that they consider they solder better. In addition to this, my second idea was that they formed a stronger radiator, because they would not be so liable to be torn apart where soldered. I am pleased to hear that the tubes are not to be annealed in the centre, so that they will be less liable to collapse in the case of the radiator having some pressure in it due to the water boiling. The larger tubes have the advantage that the air under the bonnet is not quite so hot for a given water temperature, therefore cooler floorboards. There would probably be very little difference in efficiency of cooling because we should use more air to make up for the less surface. We therefore reduce the test of two sizes only as above, with expanded ends. R.{Sir Henry Royce} | ||