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).
Comparison of weight and dimensions between solid strip and rolled strip radiator tubes.
| Identifier | ExFiles\Box 15\1\ Scan399 | |
| Date | 14th October 1930 | |
| HS{Lord Ernest Hives - Chair}/RM.{William Robotham - Chief Engineer} x7250 RHC{R. H. Coverley - Production Engineer}1/CEP14.10.30. RE RADIATOR TUBES. Replying to information asked for :- No. of tubes. Type. Weight. 162 Solid strip 336 ozs = 21 lbs. 162 Rolled strip 76 ozs = 4.75 lbs. Saving on Rolled over Solid - =16.25 lbs. Weight of 1 solid strip = 2.072 ozs. Weight of 1 rolled strip = .468 ozs. The depth of indentation of the tube supplied by us was .020". The depth of indentation of the tube supplied by you varied from .050" to .063". RHC.{R. H. Coverley - Production Engineer} | ||