I took my SS7/Rotax912S/Dynon Flight Dek180 out for its first taxi today. Brakes were good, tail wheel and steering felt good. But when the GPS said I was moving along at 18mph the Dynon IAS said nothing. I have the basic Kitfox pitot tube, not an AOA unit. I disconnected the air tube from the back of the Dynon. I applied air to the pitot tube and heard and felt the air coming out of the other (Dynon) end. I was careful and the supplied air pressure to the pitot tube was very light...as I moved the (Dynon) end of the tube with air coming out close to the "In" port of the Dynon, the IAS moved up to 26mph or so. I have two static ports on either side of the fuselage. There is a "recalibration" function in the dynon under SETUP/AIRSPEED but that didn't help. This seems like such a simple system...how could it not work? I can call Dynon but with the Holiday it won't be until Tuesday and I'd like to keep working on this. Anyone have any ideas?
No airspeed indication during taxi test
Reply With Quote