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).
Request for Michelin 'Pilot' tyres to test on Bentley and Phantom III models.
| Identifier | ExFiles\Box 146\1\ scan0079 | |
| Date | 5th November 1937 | |
| W/P. To Sr. from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} 1245 Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}8/AP.5.11.37. Thank you for your Sr/Crn.15/GM.3.11.37. With regard to the new Michelin 'Pilot' tyre, could you find out for us whether they make a tyre of the size we could try on the Bentley. We have at the Works 17" wheels having rim widths of 4" and also 5". We presume this latter is about what Michelin now recommend. For Ph.III. we have wheels 18" diameter with rim widths also 4" and 5". If by any chance Michelin have tyres which would suit one of these rims, we should be glad if you would send two tyres over to England so that we can try them out on the Skid Pan for cornering power. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||