Van Lanier Posted October 31, 2024 Report Posted October 31, 2024 Has anyone installed an S-Tec/Cobham 30 ALT Altitude Hold (only) system in their Mooney? I have an antique ARC-AF 512B factory installed autopilot that, believe it or not, works fine in heading and GPS tracking modes. I would like to add altitude hold, as I am getting older and finding that manually holding altitude on long cross country flights is a bit tiring. I know -- I can get a GFC 500 with GI-275s, an engine monitor, new audio, new panel, etc. for $55K or so. But, I don't need the world's most expensive M20C. Many thanks.
MikeOH Posted October 31, 2024 Report Posted October 31, 2024 I'm afraid I can't help with any install experience. However, I purchased my F with an STEC-30 with ALT already installed and have been very happy with it. Stable, no porpoising. And, have had no maintenance issues in 7 years.
Greg Ellis Posted November 1, 2024 Report Posted November 1, 2024 15 hours ago, Van Lanier said: But, I don't need the world's most expensive M20C. Many thanks. Actually, I think I am in the running for that…. 1
Jim Peace Posted November 20, 2024 Report Posted November 20, 2024 I have a C with the Stec30 w/ Alt hold. It hold altitude to the foot.....very happy with it.... Came with the airplane... 1
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