The weight increase of the 20/25 chassis from its introduction in 1929 to the date of the memo.
| Identifier | ExFiles\Box 107\4\ scan0129 | |
| Date | 7th May 1934 | |
| x4538 To Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} from Sg. {Arthur F. Sidgreaves - MD} Copy to Wor {Arthur Wormald - General Works Manager} E Cx. {Major Len W. Cox - Advertising Manager} By.Da. {Bernard Day - Chassis Design} Hdy. {William Hardy} Bn. {W.O. Bentley / Mr Barrington} re Weights. Sg {Arthur F. Sidgreaves - MD} 15/E7.5.34 With further reference to Sg {Arthur F. Sidgreaves - MD} 12/E3.5.34 I have now obtained information regarding 20/25's. The Derby quarterly weight records indicate that the weight of a complete 20/25 chassis, when it was first introduced in October 1929 was 2601 lbs. and to-day it is 2879 lbs., an increase of 269 lbs., i.e. 2 cwt. 45 lbs. Sg. {Arthur F. Sidgreaves - MD} | ||
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).