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).
Record of tests and modifications for a 12-inch deep frame.
| Identifier | ExFiles\Box 75\3\ scan0236 | |
| Date | 14th December 1911 | |
| R.R. 512 (2 1/2 H) (X.435. 14.12.11) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2227 OH/14 X962 X829 Section 100 Description 12" deep frame. Date: 7/2/12, Report: See T.C. 105. to be fitted to a 1900 series chassis standard except brass leaves to springs. found to be on line. Date: 21/2/12, Report: W.A.'s material Date: 19/3/12, Report: 1926 chassis is running with same Date: 10/4/12, Report: Run 500 miles engine + gearbox Date: 9/5/12, Report: Shat'd by Mr Radin req. camber front springs fouling side steering rod & exhaust box. - Abeyance "F" Date: 16/4/12, Report: T.C. 115. Mr B. made report to CJ & FHR Date: 4/5/12, Report: Shat from Mr Royce's folder. Comparative rigidity (1) 6" frames (2) 6" frames with light trusses. (3) 9" frames 1714 & 78 | ||