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).
Diagram showing wheel-case gear backlash measurements after a 10,000-mile test in France.
| Identifier | ExFiles\Box 91\3\ scan0259 | |
| Date | 10th January 1936 | |
| PA.{Mr Paterson}III - No 10 UNIT AFTER 10000 MILES TEST IN FRANCE WHEEL-CASE GEARS INITIAL BACKLASH APPROX. .002" ON ALL GEARS. CAM-WHEEL E.85256 - S N BACKLASH .003 - .004" IDLER GEAR E.86982 - FABROIL DYN. GEAR E.19647 S N BACKLASH .0045 - .0055" E.85121 PINION (CRANK) S N BACKLASH .002 - .005" | ||