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).
Critique on the unexpectedly heavy Barker-Weymann coachwork construction using laminated steel.
| Identifier | ExFiles\Box 5\2\ 02-page198 | |
| Date | 10th October 1928 | |
| V5830 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}1/M10.10.28. 12-G-4. - BARKER-WEYMANN. X5830 From weights supplied by Derby it appeared that the complete coachwork of this car weighed about 10 cwts. We were very alarmed at this as we had thought the Weymann body meant a light body. On examining the system of laminated steel spring construction we see that it is quite possible for this steel, together with the horsehair and padding, to weigh as much as a normal aluminium panel and paintwork. We therefore think the system distinctly inferior to that of Weymann. As applied to 12-G-4. the idea of using a laced steel strip foundation at certain places might be useful, but to use it throughout the whole body we think uncalled for, and would prefer a system as suggested in a previous criticism of this work. DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} | ||