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).
Comparative test of S.S. radiator tubes and a subsequent recommendation.
| Identifier | ExFiles\Box 15\1\ Scan133 | |
| Date | 7th August 1929 | |
| X7250 To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Copy to SE. Wor.{Arthur Wormald - General Works Manager} Ey. Da.{Bernard Day - Chassis Design} Oy. Hm.{Capt. W. Hallam - Head Repairs} E.{Mr Elliott - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}3/BE7.8.29. X7250 X766 S.S. RADIATORS. We have made a careful comparative test of the 6/7 mm. tubes and the 5 1/2/7 mm. tubes on the S.S., and the results show that there is no measurable difference in the cooling capacity of the radiator with the tubes giving the wider water spaces. We therefore recommend that these tubes should be used for the S.S. and for all replacements in the case of radiators having integral shutters and tubes 4.25" long. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||