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).
Review of Messrs. Firths' spring drawing, detailing required modifications for the rear spring.
| Identifier | ExFiles\Box 16\7\ Scan220 | |
| Date | 14th January 1930 | |
| By/HEBH H/Rem from 134/Col. 87410 BY/HEB{H. Biraben}2/M14.1.30. 23-EX. X.4429 X.7410 MESSRS. FIRTHS' SPRING DRAWING. FRONT SPRING. Will be O.K. REAR SPRING.- (1) Solid Eye at Rear of Rear Spring?(Should be rolled). (2) We cannot have 16.500" Centres for inner Clips on Rear Spring, minimum distance allowable 17.500" Centres.(Fouls Nuts on Brake Drum at 16.500"). (3) We cannot have 48.875" Centres of outer Clips, as these foul Subframe Support. Clips should be 45.500 max. centres or between 52.600 and 54.000 Centres. BY/HEB.{H. Biraben} | ||