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).
Specifications for the weight and capacity of a radiator for the standard 1630 chassis.
| Identifier | ExFiles\Box 78\3\ scan0151 | |
| Date | 10th June 1911 | |
| R.R. 149 (20 H) - (W 414 13 4 11) G 1616. X767 1500 10/6/11 Radiators, Weight (corr) Standard 1630 chassis listed Weight 88 lbs (empty) Capacity 5 gals 1 pint: ? full to top brim Orme Evans. Lyfe make [Strikethrough] All steel water weight 2 qrs 27 lbs 83 lbs [/Strikethrough] E.A. EP.{G. Eric Platford - Chief Quality Engineer} 20/6/11 | ||