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).
Brake test results and buffer clearance measurements.
| Identifier | ExFiles\Box 5a\3\ 03-page089 | |
| Date | 7th November 1931 | |
| YS840 18.G.IV. BRAKE TESTS. E7/11/31. 30 M.P.H. 26' 6" 70 M.P.H. 320' 60 M.P.H. 235' 50 M.P.H. 134' 40 M.P.H. 84' 30 M.P.H. 42' 20 M.P.H. 16' Buffer Clearances.- Should be 2-3 Front O.S. 1.1/2 ins. N.S. 1.7/16 ins. Rear O.S. 4.1/2 ins. N.S. 4.1/8 ins. G.T.H. [Signature] | ||