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).
An account of tweaking a 12' frame during a test in 1926.
| Identifier | ExFiles\Box 75\3\ scan0252 | |
| Date | 1st January 1926 | |
| X829 For account of tweaking of 12" frame, while japping test was being made to test Sphere on 1926. see YB37/2/111212 in file X1 | ||