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).
Letter from H.M. Hobson, Ltd. regarding cracks found in tubing for tank units and a request for assistance in tracing the fault.
| Identifier | ExFiles\Box 44\2\ Scan083 | |
| Date | 13th July 1927 | |
| Messrs.Rolls-Royce,Ltd., Date 13. 7. 27. Page 3. which we made up some of the first tank units here, cracks were traced in the tubing, but we thought that we had eliminated all the tubing which showed any cracks. However, it is conceivable that a crack may have opened up afterwards, although the specification for this tubing is "Solid drawn", and no cracks should occur. We are now quite sure of our source of supply, and it will never recur, but the very unusual point which you raise at this time, suggests as a conceivable possibility that the soldering of the tube may have opened up a crack which was not visible. We naturally wish to do everything we can to get to the bottom of this trouble at the earliest possible moment, and we should be much obliged for your assistance with regard to tracing it, either to a faulty tank unit, faulty air line or installation, or a faulty dash unit. Assuring you at all times of our best attention, We remain, dear Sirs, Yours faithfully, H.M.HOBSON,Ltd., Director. | ||