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).
List of 20-HP chassis weights between 1922 and 1927, noting the increases and the reasons for them.
| Identifier | ExFiles\Box 107\4\ scan0080 | |
| Date | 17th February 1927 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 44538 Mx{John H Maddocks - Chief Proving Officer}/McM4/T17.2.27. re Chassis Weights. X8840 [STAMP: RECEIVED 18 FEB 1927] The following particulars give the weights of Chassis at various dates, and as far as possible the reason for increase. The conditions for both chassis at all periods being as follows. Complete as delivered from Works including petrol, oil, water, tyres, battery, RR. spares. The 40/50 weights all referring to long chassis, the short type being approx. 40 lbs less. 20-HP.Chassis. Date. Weight. Reason Oct.1922. 2423 lbs. April 1923. 2450 lbs. June 1923. 2465 lbs. Radiator Shutters. June 1924. 2483 lbs. Torque reaction dampers. RO.{C. C. Rose - Export Manager}1. Magneto. Aug.1925. 2660 lbs. F.W.B. Feb. 1927. 2610 lbs. W.B.W. | ||