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).
Agreeing to the standardisation of a 14-toothed axle and suggesting a double reduction axle for heavier armoured cars.
| Identifier | ExFiles\Box 49\1\ Scan361 | |
| Date | 12th July 1921 | |
| R.R. 955A (100 T) (S.H 159, 11-5-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 X.4299 To Hs. {Lord Ernest Hives - Chair} from R. {Sir Henry Royce} c. to CJ. c. to BJ. c. to PN. {Mr Northey} c. to Wor. {Arthur Wormald - General Works Manager} c. to Da. {Bernard Day - Chassis Design} c. to BY. {R.W. Bailey - Chief Engineer} R14/G12.7.21. X.3457 X.3545 - RE. 14-TOOTHED AXLE. X.4299 I quite agree with the standardisation of this axle for the heavy cars, (i.e. over 50 cwt. complete with passengers) the 15-toothed one doing excellently for the light cars, and certainly seems to have no disadvantage, the petrol consumption being very little affected by the change. I always thought the consumption might increase more quickly. We have now carried this matter far enough except with excessively heavily weighted car/armoured cars of 4.3 tons when I think a double reduction 6 to 1 back axle will be needed; this, we are suggesting. R. {Sir Henry Royce} | ||