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pitot heat question
Coming back from Mammoth this past Sunday and flying through a snow
cloud West of the Sierras, I had the Pitot freeze over. I realized it was frozen when I tried to correct for altitude gained in turbulence and the airspeed indication didn't increase even as I pushed the nose down and could hear the relative wind increase. Not a big problem -- I could see where I was going on the AI, and a minute or less after I turned Pitot heat on, ASI returned to normal. This did raise a question -- is there a good reason Pitot heat isn't on all the time? It doesn't seem to be a big power drain, and unlike carb heat does not to my knowledge affect performance. Is there a reason I shouldn't turn it on when I put transponder on ALT and turn it off when I shut down electrics before engine shutdown? Ari. -- Elections only count as free and trials as fair if you can lose money betting on the outcome. |
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