S sjsflyer Member Dec 11, 2014 #1 The GTP 59 probe is mounted in the wing root of my RV-8. My TAT was reading approx. 7 degrees warmer than oat. Should this probe be mounted on the exterior surface of the airplane? Sean
The GTP 59 probe is mounted in the wing root of my RV-8. My TAT was reading approx. 7 degrees warmer than oat. Should this probe be mounted on the exterior surface of the airplane? Sean
