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).
Specification table detailing weights and capacities for various radiator matrix sizes for the 40/50 model.
| Identifier | ExFiles\Box 3\2\ 02-page108 | |
| Date | 17th September 1924 | |
| X700 40/50 RADIATOR - CYL:BLOCK. X3457(crossed out) X3433 x 2001 | Size of matrix. | Wt. of rad: with this matrix. | Water equivalent of this radiator. | Water capacity of radiator with this matrix. | |---|---|---|---| | 20 1/2" | 96 lbs. ± 2 | 9.0 lbs. | 7 galls. 3 1/2 pints. | | 21 1/2" | 100 " ± 2 | 9.39 " | | | 22 1/2" | 104 " ± 2 | 9.75 lbs. | | | 23 1/2" | 111 " ± 2 | 10.3 " | | Wt. of 40/50 cyl. block 204 lbs. Water equivalent 27 lbs. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||