As previously posted here, we installed a Rotax 912iS on a KF-IV.
Now, during our phase 1 test flights we are having overheating problems, especially on the ground.
We installed the coolant radiator under the belly of the plane, with and without the scoop. With no significant differance.
we get 220°F coolant and 200°F oil temperatures.
What is your experience with overheating of 912 engines.
Does anyone baffle a 912 engine?