Blueprint with specifications and performance graph for a McCord Car Heater, Model CH. 102.
| Identifier | ExFiles\Box 137\1\ scan0266 | |
| Date | 17th April 1939 | |
| Mᶜ CORD CAR HEATER Model CH. 102. FRONTAL AREA .298 ⊓' Nº OF TUBES 48 FT RUN TUBING 28 GILLED BLOCK 7"x7x3" DEEP WITH 3"x2" CENTRE HOLE FOR MOTOR OVAL TUBES 1/2"x3/32" 4 ROWS PITCH OF GILLS 10.9/IN TOTAL Nº 76 TUBE PITCH 7/16" ROW PITCH 3/4" COPPER GILLS. 12 VOLT MOTOR-1LB 10 1/2oz. WT. OF HEATER 12LBS.-9ozs. WT. OF FITTINGS 1LB.-4 1/2 ozs. 4 BLADE SUCKING FAN 6 3/4" DIAM. 25° MEAN ANGLE. WATTAGE AT 12 VOLTS = 24.2 CONSTANT WATER FLOW 1.5 GALLS/MIN. Graph Text: Left Y-Axis: VOLTS OR WATTS Bottom X-Axis: AIR FLOW CU. FT. / MIN. Right Y-Axis: B.TH.US/HR/120°F TEMP. DIFFce AIR IN TO WATER MEAN. Labels: WATTS, VOLTS, DISSIPATION, RHEOSTAT FULLY ON, 2/3 ON, 1/3 ON, RHEOSTAT OFF | ||
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).