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 information on the running radius of high pressure and balloon tyres, to be supplied as MPH at 1000 RPM.
| Identifier | ExFiles\Box 53\3\ Scan079 | |
| Date | 23th November 1927 | |
| HS.{Lord Ernest Hives - Chair} FROM DA.{Bernard Day - Chassis Design} X4565 DA{Bernard Day - Chassis Design}1/M23.11.27. X5812 X4050 We have had various information regarding the running radius of high pressure and balloon tyres, but R.{Sir Henry Royce} would like you to supply this information in the form of MPH. at 1000 RPM. for both cars. This information we particularly want in reference to the standard balloon tyres for both cars. If possible for the 20HP. we should also like information for 19" wheels. DA.{Bernard Day - Chassis Design} | ||