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Bearhawk N83ME update - Static port placement

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  • Bearhawk N83ME update - Static port placement

    I now have a little over 4 hours on my plane. Overall things are going well. However, I found my choice of static port locations was not good. Relative to the landing gear leg forward attachment my my static ports are located about 3 inches forward and about 8 inches up. Uncovered I was reading about 20 kts too fast. My backward facing shields did not work well at all. At a true airspeed of 130 ktas, I was still indicating 20 kts too fast. I tried switching to the cabin static pressure but still found my indicated airspeed was about 10 kts too fast. My forward facing wedges flown today worked too well. The wedges were about 0.150 in high and created a dam just behind the static port. It raises the local pressure. At the same true airspeed I was indicating 8 kts too slow. I have shortened the height of the wedges 40%. That should get me close. Airspeed errors were determined by flying a triangular course and measuring GPS speed and track. I will write up something for Beartracks in the future. The moral of the story is keep your static ports high on the cowl or put them on the aft fuselage.
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