Hi and welcome to Van's Air Force! I have a Piper pitot mast on my RV-6 (that was the cheapest option for a heated pitot at the time) and the static source never worked right. I finally installed the plans-specified static ports and my airspeed is within 1% now.
RV-6 N207AM w/G3X, 1,400 hours +
South St. Paul, MN (KSGS)
Senior Tech - Panel Design, SteinAir, Inc.
A&P, EAA Tech Counselor
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