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).
Pump failures due to heat and issues with a Harrison Car Heater.
| Identifier | ExFiles\Box 92\3\ scan0287 | |
| Date | 1st June 1937 guessed | |
| ( 20 ) Both units of the double pump failed due to the pole pieces fouling. The trouble was accentuated by excessive heat. This was investigated, together with vapour troubles by Rm{William Robotham - Chief Engineer}/J.B.Dixon, and is dealt with fully in a seperate report. The only advantage of the third pump was a standby in case of mechanical breakdown of the other two. It had no other advantages, and was noisy. With vapour present, the three pumps were considerably more noisy than the double unit, and were no more effective in dealing with the vapour. Harrison Car Heater. Light water-hammer noises were complained of. These were overcome by turning the taps off slightly. This had the effect of making the left hand side of the matrix consider- ably hotter than the right, so that an air current of uniform temperature could not be obtained. The position of the heater in front of the passenger's knees was bad, as the heating effect was too localised. ------------ Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW.{Ivan M. Waller - Head of Chateauroux} [Handwritten note in left margin]: Steadman - This requires investigation | ||