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).
Reduction of wheel arch height for a 20 HP model with 5¼ inch tyres and 21 inch rims.
| Identifier | ExFiles\Box 107\4\ scan0171 | |
| Date | 8th August 1928 | |
| √5390 SG{Arthur F. Sidgreaves - MD}/HN.{F. C. Honeyman - Retail orders} from DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} c. to Hs.{Lord Ernest Hives - Chair} DA{Bernard Day - Chassis Design}/EV{Ivan Evernden - coachwork}2/M14. 8. 28. X5810 X615 X5390 20 HP. WHEEL ARCHES - 5¼" TYRES. 21" RIMS. We thank you for your SG{Arthur F. Sidgreaves - MD}/HN{F. C. Honeyman - Retail orders}8/ED{J. L. Edwards}8. 8.28. and your SG{Arthur F. Sidgreaves - MD}/HN{F. C. Honeyman - Retail orders}20/ED{J. L. Edwards}31.7.28. We note that you wish to reduce the height of the wheel arch to 17", this being ½" more than our suggestion on N. sch. 2643. we note that you make these recommendations as a result of tests on an actual body. We ourselves are in perfect agreement with your getting the wheel arches as low as practically possible. We think however that this height of wheel arch should be tested by Hs.{Lord Ernest Hives - Chair}, either by his fixing up a car, or by getting him to witness your tests. We have already asked Derby some while ago to make tests of the wheel arch clearance, but have had no reply. We would be glad if Derby would give us their views. DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} | ||