December 1999 Issue
A Better Class of Compass
That’s what vertical cards are supposed to be. They deliver mixed results.
Like the proverbial bad penny, questions about vertical card compasses seem to resurface about once a year. We suspect owners most frequently consider them during annual when the whiskey model will no longer pass muster or needs fluid or other maintenance.
The vertical card is always an option, but we’re not sure we can recommend one unconditionally. We recently flew a Mooney with a vertical card and other than some screwy movements when turning to southerly headings, it worked like a charm and we have to say we liked it.
But in talking with other owners of vertical cards, our impression is that results are decidedly mixed. Some owners love them, others rip them out in short order,...
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