Test rig report detailing the results of corrosion tests on Phantom III engine components.
| Identifier | ExFiles\Box 94\3\ scan0273 | |
| Date | 7th February 1938 | |
| RM {William Robotham - Chief Engineer} /STD PHANTOM III CORROSION TEST - TEST RIG WITHOUT HOT BOX - STANDARD CYLINDER RUNNING TIME 100 hrs STANDING " 404 " TOTAL " 504 HRS - SLIGHT CORROSION WITH C I HOT BOX - STANDARD CYLINDERS. RUNNING TIME 100 hrs STANDING " 955 " TOTAL " 1055 HRS - INCREASED CORR. NOT DUE TO HOT BOX WITH ANODICALLY TREATED ALUM. HOT BOX & CYLINDERS RUNNING TIME 200 hrs STANDING " 906 " TOTAL " 1106 HRS NOTE CORROSION IN THIS TEST WAS SPOILT BY A BURST IN THE OIL COOLER RM {William Robotham - Chief Engineer} /WHBell | ||
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).