Nose Oil Cooling
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Oil cooling seems to be a chronic problem, so I'm going to try to capture some of the better ideas on how to control oil temperatures as well as background data that can be useful along the way.
As you can see from the series of pictures of Rene Dugas' airplane, he has a significant bump on the bottom of his Velocity that creates a low pressure zone and allows for good airflow through the cooler. He says that he can fly WOT at low altitude with good temperatures with this setup.
Typical Oil Cooler Performance Chart
Rene Dugas Nose Cooler
Rene Dugas Nose Cooler
Rene Dugas Nose Cooler
Rene Dugas Nose Cooler
Rene Dugas Nose Cooler
