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).
Confidential report on a new chassis, detailing its features, improvements, and comparison to other models.
| Identifier | ExFiles\Box 65a\1\ scan0013 | |
| Date | 24th November 1925 | |
| 7770 To BJ. from R.{Sir Henry Royce} c. to Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} c. to BY.{R.W. Bailey - Chief Engineer} Hs.{Lord Ernest Hives - Chair} CONFIDENTIAL. R2/M24.11.25. EAC.1. X.7770 X.8920 I have seen this chassis. It contains most of the features we are putting on EAC.7., including spring control of back axle - i.e. no torque tube. This chassis was designed some years ago, and in a few features we have learnt how to improve it, hence the creation of EAC.7. At the same time I should like to point out that we - (RG.{Mr Rowledge} DA.{Bernard Day - Chassis Design} HS.{Lord Ernest Hives - Chair} E.{Mr Elliott - Chief Engineer} AJS. and R) are very pleased with the impression the chassis gave us, and it has many of the 20 HP. qualities. Its good points are slight improvements in the follow-ing directions:- (1) Less liable to knock in the transmission (roads and missing fire.) (2) Stress on tyres and transmission (longer life). (3) Lighter weight and cost. (4) Better road holding and braking (rear axle forwards.) (5) Rather better steering and more confidence. (6) Slightly less vibration and noise generally, owing to axle being more detached. (7) Improvement in shunting backwards - less liable to dither. At the moment we are fitting it with a more suitable body at Derby, and some further equipment, before submitting it to you for your views. Another improvement that will please Sales is that both the short and the long chassis will now be capable of carrying a somewhat longer body, due to the economy on EAC.1. 7. and 8. at the front (i.e. bonnet, dash and pedals), and that we can on EAC.1. and 7. permit slightly more overhang at the rear, therefore gaining still a few more inches over EAC.8., and in some steerings it becomes quite a fair total. R.{Sir Henry Royce} | ||