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).
Arguing against removing the frame tie-bars on the 'Japan 3' model due to structural integrity concerns.
| Identifier | WestWitteringFiles\V\October1930-February1931\ Scan276 | |
| Date | 2nd February 1931 | |
| SC. FROM DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} C. to WOR.{Arthur Wormald - General Works Manager} HS.{Lord Ernest Hives - Chair} C. to E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} SECRET ORIGINAL JAPAN 3. FRAME TIE-BARS I understand that it is suggested that we may be able to leave off the frame tiebars on Japan 3. While I am in thorough agreement with the suggestion on economical grounds I am not sure that I would recommend the policy until a 25HP. car with a Cabriolet or open body had been severely tested, the body being mounted direct on the chassis as standard, the tiebars having been removed. It will be recalled that the early 20HP. cars had no tiebars and there was considerable trouble with sagging and movement at the rear doors. We met it on 5-G-., and this car had tiebars fitted. Due to the urgency they were at once adopted as standard. Since then the section of the frame at the rear joggle has been slightly deepened, but the weight of the chassis has increased 3 cwts, and the wheelbase has been lengthened 3". Body weights have gone up, and braking and acceleration, as well as the maximum speed. It is for these reasons that I raise this point. DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} | ||