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).
Performance chart showing the effect of water flow on a Tropic-Aire Duplex Model car heater.
| Identifier | ExFiles\Box 137\1\ scan0206 | |
| Date | 3rd December 1936 | |
| TROPIC-AIRE CAR HEATER DUPLEX MODEL EFFECT OF WATER FLOW. FOR ELEMENT DETAILS SEE CHART 633/1. CURVE OBTAINED AT CONSTANT VOLTS = 12.2 PRESS. DROP ACROSS HEATER IN INS. Hg 15 10 5 DISSIPATION PRESS. DROP WATER FLOW GALLS/MIN. L 633/2 120°F.{Mr Friese} TEMP. DIFFCE AIR IN TO WATER MEAN. 15,000 10,000 5000 B.TH.U's/HR/ CLAYTON DEWANDRE & CO LTD TITANIC WORKS LINCOLN EWS 3/12/36 | ||