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).
Methodology and results of chassis frame deflection tests.
| Identifier | WestWitteringFiles\L\2April1924-June1924\ Scan91 | |
| Date | 27th May 1924 | |
| To DA.{Bernard Day - Chassis Design} from Hs.{Lord Ernest Hives - Chair} ORIGINAL Hs{Lord Ernest Hives - Chair}11/LG27.5.24. CHASSIS FRAME DEFLECTION. 44260 5,200 was the total load put on to the Frame so that there was half this on each side member. This load was arrived at by adding weight until the springs came down to the buffers. We considered this was the correct load to use when making comparisons of Frame Stiffeners. We are sorry that the figures for the deflection are not consistent - the figures given are those arrived at after several tests. We reported [noted] at the time that the curves were not what we should have expected, but they were the results which we obtained. The deflections greatly depend upon how the load is applied - realising this, considerable care was taken, but it is still possible that some of the errors may have been due to this. We shall shortly be carrying out a deflection test on EAC.1. Frame. We will make special note to see whether we can obtain consistent results. We will also carry out a chassis frame deflection test on the 20 HP. in the way you suggest. We suggest you send us a skeet sketch showing how you would like the 39 cwts. of load distributed. Hs.{Lord Ernest Hives - Chair} | ||