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 drum temperature chart from a 'Hands Hopton via Gelia' test run on a 4 1/4 Litre Bentley 3 B IV.
| Identifier | ExFiles\Box 85\1\ scan0088 | |
| Date | 29th April 1936 guessed | |
| BRAKE DRUM TEMPERATURE CHART - X OF TH'HANDS HOPTON VIA GELIA RUN. 4 1/4 LITRE BENTLEY 3 B IV DRUMS USED:- O.S.F. ALUMINIUM RM{William Robotham - Chief Engineer}/SS{S. Smith} 2 B12 (BRIMOL) N.S.F " IM30 (MILLENITE) O.S.R " Hs{Lord Ernest Hives - Chair}/2205 5 M26 N.S.R " " 4.9CS.26 (CARBON STEEL) Graph Legend: SOLID LINES - WIRE WHEELS ONLY. DOTTED LINES - WIRE WHEELS WITH DISCS. LOWER SOLID LINE REPRESENTS OSF, OSR & NSR TEMPERATURES. UPPER LINES, PLAIN & DOTTED, REPRESENT NSF TEMPERATURES. Handwritten Note: RAD B SPLINED SERVO. Axes: Y-Axis: DEGREES CENTIGRADE X-Axis Top: 0 2 6 10 14 MINUTES X-Axis Bottom: 0 1 2 3 4 5 6 7 8 9 10 MILES. | ||