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).
General chassis failures with a log of issues encountered at specific running hours.
| Identifier | ExFiles\Box 119\2\ scan0244 | |
| Date | 24th March 1925 | |
| R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. -3- EXPERIMENTAL REPORT. Expl. No. REF Hs{Lord Ernest Hives - Chair}/RB{R. Bowen}/LG24.3.25. GENERAL CHASSIS FAILURES. Hrs. run. | Piece No. | Position. | Description. 1.2 | F.51028 F.51836 | N/S & O/S | Both dashbrackets broken. 1.15 | " | " | " 4.54 | " | " | " 13.13 | F.53424 | N/S | Front spring locating piece broken at slot. 8.50 | --- | --- | Steering column developed bad slack - repaired. 26.29 | --- | N/S | Rear engine foot broken loose - new bolt fitted. 28.52 | F.50390 | --- | Steering column support tube broken at frame end (see sketch) 32.27 | --- | --- | Radiator leaks - repaired. 24.0 | F.6369 | --- | 40/50 solid 'D' type dashbrkts. (unwelded) broken. 35.50 | F.51320 | N/S. | Cross steering lever broken above ball end (see sketch). Notes on general chassis failures :- DASHBRACKETS. A great deal of trouble was experienced with these which broke across the sections between the lightening holes. 40/50 type solid brackets unwelded at the corner were afterwards fitted and even in this case the life was considerably shorter than during the 40/50 bump tests, times being approx. 24 hrs. against 73 hrs. previously. contd :- | ||