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Old 03-03-2015, 02:49 AM   #1
Diplocaulus
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Default Pitot heat

Is there a pitot heat switch on the MiG-15bis? Does it need one? (I haven't had any airspeed indicator issues yet.)

Just curious.

Thanks.
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Old 03-03-2015, 03:02 AM   #2
Zeke
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Yes there is one. It is located on the upper right hand side of the front panel. You have to peak underneath and to your right.
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Old 03-03-2015, 03:36 AM   #3
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Thanks!
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Old 01-29-2019, 07:55 AM   #4
grim 253
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Hello, I have a question.
I have Pitot heat ON but after 15 mins at 10 000M the Pitot tube gets frozen.
Similar situation is at 7 000 M, gets frozen after circa 20- 25 mins. I have to descend to 4 or five thousand and instruments start indicate again.

Isn't it strange ? Did I miss anything?

I believe that pilots in those times spent more time than 15 mins at high altitude.
Have a nice day
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Old 02-03-2019, 08:57 AM   #5
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On my last flight I also had the frozen pitot tube.
Pitot heat was on from startup. Was a long flight from Soganlug to Anapa, more than an hour. Spent all the time at 10.000m, between Gelendzhik and Anapa the airspeed readings were strangs and eventually read zero. Descending to Anapa readings came back at around 3.500m.
There were no reports of failed pitot heat after flight.
Some sort of random failure?
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