Quote:
Originally Posted by Mechanist
Carburetor heat seems to work inversely. In 100% you'll get less engine temperature then in 0%
Throttle 50 %
Pitch 75%
IAS: 150-160 mph
Height: 8000 ft
Radiator 100 %
Carburetor heat % / Engine temperature °C / RPM
100 / 201 / 2260
75 / 203 / 2290
50 / 208 / 2340
25 / 221 / 2380
0 / 233 / 2480
Also the carburetor heat controll lever labeld as "AIR INTAKE SHUTTER" (Don't really know how it suppose to work on this airplane)]
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That's exactly what you would expect, the warmer air entering the cylinder is harder to compress, so less power and lower temperatures are expected.
Many car engines use diverted air warmed by the cooling fins or radiator to provide warmer air for the carb. I suspect that's happening here.
56RAF_phoenix