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Jim, you didn't indicate which Lancair model. As I said previously, the Altrak in my 235/320 works very well and I consider it one of my most treasured investments. In the 235 the trim system is spring bias in both directions and that may have some effect. I do not have the bob weight installed. I also have the Pictoral Pilot and like it. Earl
Jim wrote:
I have been using the TT Altrak VS Altitude Hold and Pictoral
Pilot for about 6 months now. I had heard scuttlebutt that aircraft
like the Lancair can have difficulties with porpoising with the altitude
hold engaged. Sure enough, I have that problem.
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