Not sure if this subject belongs here, feel free to move.
On my new to me with recently upgraded Dynon glass 9A, I've been unhappy with the TAS shown on the Dynon. I started a thread on the propellers thread thinking a new prop or re-pitch might be the answer.
Jesse Saint suggested I use the 4 compass point TAS test and compare to Dynon reported speeds before spend $$. In fact it turns out, at various altitudes, the plane was 7-9 kts faster than Dynon reported!!
Did a lot of reading on VA about adjusting the Dynon or Static sys, some suggestions included new ports, tape in front of static holes, reaming the Pitot hole, etc.
Jesse suggested attaching a PopRivet head to each static port with CA glue. A test flight at 5500 yesterday showed Dynon calculated TAS to be right on after adding rivets!! I suspect it will be very close at other altitudes too.
Picture of complex install attached:
On my new to me with recently upgraded Dynon glass 9A, I've been unhappy with the TAS shown on the Dynon. I started a thread on the propellers thread thinking a new prop or re-pitch might be the answer.
Jesse Saint suggested I use the 4 compass point TAS test and compare to Dynon reported speeds before spend $$. In fact it turns out, at various altitudes, the plane was 7-9 kts faster than Dynon reported!!
Did a lot of reading on VA about adjusting the Dynon or Static sys, some suggestions included new ports, tape in front of static holes, reaming the Pitot hole, etc.
Jesse suggested attaching a PopRivet head to each static port with CA glue. A test flight at 5500 yesterday showed Dynon calculated TAS to be right on after adding rivets!! I suspect it will be very close at other altitudes too.
Picture of complex install attached:
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I prefer the bonding into the old flush port over CA though.
