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).
Bumper test report for a 25 HP Harrison radiator, detailing its satisfactory completion after a 30-hour run and pressure test.
| Identifier | ExFiles\Box 119\2\ scan0359 | |
| Date | 8th August 1932 | |
| X4268. FILES+ BUMPER TEST. 8.8.32. X4516. HARRISON RADIATOR 25 HP. ------------------------- The original Harrison radiator has completed 30 hrs running on the Bumper at 105 drum r.p.m. Afterwards the radiator was tested with a pressure of 8 lbs/sq.in. for 30 mins. and found to be satisfactory. Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} | ||