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).
High-speed test report on a Bentley 'milanite' flywheel.
| Identifier | ExFiles\Box 85\2\ scan0138 | |
| Date | 8th January 1935 | |
| X212 To E.{Mr Elliott - Chief Engineer} From HS{Lord Ernest Hives - Chair}/WB.{Mr Brazier/Mr Bell} c. to Wor.{Arthur Wormald - General Works Manager} c. to By.{R.W. Bailey - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to Hdy.{William Hardy} HS{Lord Ernest Hives - Chair}/WB.{Mr Brazier/Mr Bell}19/KW.8.1.35. Bentley "milanite" Flywheel. High Speed Test. A "milanite" flywheel EX.14077, with gear ring EX.14078 attached, was fitted to EX.13783 test rig, suitably modified by EX.16236/7/8 details. A maximum flywheel speed of 6800 r.p.m. was attained, and maintained for 5 minutes. Prior to running it was found that the flywheel had warped .004" - presumably during machining. However, when examined after running, this error was unaltered. Both the flywheel and the gear ring were finally chalk-tested, and found to be quite sound. It should be noted that the flywheel was attached to the rig shaft by 8 bolts, whereas the standard attachment is by 12 bolts. HS{Lord Ernest Hives - Chair}/W.Bell. | ||