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).
Flow test results and inspection notes for various radiator models, including commentary on blockages and treatments.
| Identifier | ExFiles\Box 150\3\ scan0131 | |
| Date | 4th February 1937 guessed | |
| -2- The tanks were then removed and a flow test carried out as described above. 81 g.p.m. was obtained. NOTE We were given to understand that this radiator had not been in service. Radiator No.3 Mark VI This matrix flowed 79 g.p.m. NOTE The Mark VI has 43 waterways against 61 for the Mark V Radiator No.5. Mark V Labelled 1. When flowed with the tanks in position this radiator passed 32.9 g.p.m. The tanks were removed and the matrix inspected. Radiator No. 6 Mark V. {VIENNA} Labelled 2. When flowed with tanks in position it passed 38 gallons per minute. The tanks were removed and the matrix inspected. GENERAL. While it appears on visual examination that the ends of some waterways are restricted by the matrices having been worked upon when fitting the tanks, (In this operation a flattening out of the waterway ends appears to have been done, and when soldering on the tanks, solder has run along some of the waterways causing partial stoppage. This was especially noticeable in radiators Nos. 5 and 6.) the sediment partially blocking the waterways is present in very large quantities and gives rise to the opinion that it would be capable of blocking the largest waterway in any radiator. The Kyrac treatment appears to be efficacious as practically all blocked waterways were cleared and the deposit which remained was soft and powdery, and can be cleared out. | ||