By: keithnewsome - 25th October 2009 at 22:09
Dr Strangelove, and Yak 11 Fan, Excellent, So nice to get an instant answer to ! Have photo of same a/c with both radiator coolant and oil cooler flaps open. Thank You. Keith.
By: Yak 11 Fan - 25th October 2009 at 21:45
Its the radiator coolant door, open for take off and adjustable in flight depending on temperature, usually slightly open when displaying, but not so much that you would notice it. There is a similar, but smaller door for the oil cooler in the bottom of the scoop ahead of the coolant door.
By: Dr Strangelove - 25th October 2009 at 21:44
Think thats the radiator flap, so would imagine it has an auto & manual setting.
Open more at low speed, but retracted inwards at high speed when more airflow is available?
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October 25, 2009 at 9:40 pm
