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).
Observations and repairs on vehicle components.
| Identifier | WestWitteringFiles\M\2April1925-June1925\ Scan117 | |
| Date | 10th June 1925 | |
| R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -5- Expl. No. REF GWA/Cm10.6.25. tube to frame having a standard 0.187" bolt fitted, whilst the hole in the tube was 0.200". At the accumulater end, there is a special bolt 0.200" diameter fitted. We have not got a drawing of this, so cannot say which should be right. We have enlarged hole in bracket on frame to .200" and fitted bolt to same. EXHAUST SILENCER & SNOUT. The lagging is at present O.K., but it is starting to go the same as on the EAC. This is due to the too thin aluminium covering, which will not stand the rough useage it gets underneath from stones etc. All silencer brackets are O.K. The exhaust snout is quite O.K. When running at high speeds, the snout gives one the impression of choking the exhaust. On the over-run it is bad for booming. We have not had any explosions on over-run. The bolt holding swan neck to bracket on frame was missing: We have fitted one: FRONT BRAKE EQUALISING SHAFT. This shaft, which goes through gearbox, requires a right-angled lubricator, to clear the undershield. The equaliser and shaft are in a good condition. GENERAL EXAMINATION UNDERNEATH THE FRAME. Ties and brackets, equalising shafts and cross tubes & these are all O.K. Front wings are cracking where booting is welded to wings? G.W.Hancock: | ||