My STEC 60-2/Aspen GPSS was a great upgrade in 2015 from the old one-axis autopilot and HSI but it has always struggled to follow approach turns, always swinging further and further outside the desired course and requiring me to go manual briefly to get back on course. The turn coordinator seems limited to only 75% SRT. Is the TC sending its 1v signal too early, is there a mechanical issue limiting control surface travel, other?
STEC 60-2
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Chip Sylverne
Final Approach
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- Jun 17, 2006
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Quit with the negative waves, man.
My guess would be the gpss rate gain betweeen the Aspen and the a/p needs to be calibrated. My DAC and STEC 60/2 track a hilpt perfectly.
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That’s a possibility but I just recently upgraded the Aspen to ProMax so the entire Aspen unit was replaced. The early roll limit was there before and after the upgrade. Other possibilities?