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 running radius information for high pressure and balloon tyres on two car models.
| Identifier | ExFiles\Box 58\1\ Scan043 | |
| Date | 23th November 1927 | |
| X5810 X4565 / X4050 Hs.{Lord Ernest Hives - Chair} from DA.{Bernard Day - Chassis Design} DA{Bernard Day - Chassis Design}1/M23.11.27. 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 m.p.h. at 1000 r.p.m. for both cars. This information we particularly want in reference to the standard balloon tyres for both cars. If possible for the 20 HP. we should also like information for 19" wheels. DA.{Bernard Day - Chassis Design} | ||