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).
Line chart comparing brake drum temperatures for front/rear and near-side/off-side wheels over distance during two test runs.
| Identifier | ExFiles\Box 85\1\ scan0332 | |
| Date | 6th May 1937 guessed | |
| BRAKE DRUM TEMPERATURE CHART 2 RUNS TO THE ROYAL RED GATE SOLID LINES REPRESENT TEMP. REACHED BY DRUM WITH 17" x 650 TYRE DOTTED " " " " 18 x 550 Top chart: 2ND RUN SOLID N.S.R. DOTTED O.S.R. Second chart: 1ST RUN SOLID O.S.R. DOTTED N.S.R. Third chart: 2ND RUN SOLID O.S.F. DOTTED N.S.F. Bottom chart: 1ST RUN SOLID N.S.F. DOTTED O.S.F. AXIS LABELS: Horizontal (MILES): 0, 5, 10, 15, 20, 25, 30 Vertical (Temperature): 100, 150, 200 | ||