Various proposed layouts and modifications for EAC.7 frame tie-bars.
| Identifier | WestWitteringFiles\O\January1926-March1926\ Scan5 | |
| Date | 8th January 1926 | |
| FROM DA. {Bernard Day - Chassis Design} Copy to HS. {Lord Ernest Hives - Chair} ORIGINAL DA {Bernard Day - Chassis Design} 7/M8.1.26. EAC.7. FRAME TIES. X7380 We send herewith N.sch: 2098. shewing the layout of the EAC. 7. tie-bars. We have investigated this layout diagramatically, and find that it appears to be the most suitable for the car without a body subframe, so that we expect that it will be adhered to until the subframe is standardised. When that happens we are suggesting to R. {Sir Henry Royce} that a modification to the tie-bars might be desirable. We have shewn on N. sch: 2114. a diagram of the bending moments and deflections without a body subframe. On N.sch: 2115. we have shewn a similar diagram for the same tie-bars with a body subframe, and on N. scheme 2116. the proposed new form of tie-bar, which we think is lighter and simpler, and gives the same or an improved result when a subframe is used. We have also shewn on N.sch: 2117. a further suggested modification in which one of the queen posts is removed, effecting a further lightening and simplification. We are putting these diagrams up to R. {Sir Henry Royce} and expect that he will give us an indication of his preference in the course of a short while. In the meanwhile would you please work to N.sch: 2098. as being the official tie-bar layout. DA. {Bernard Day - Chassis Design} | ||
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).