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On Sun, 12 Jun 2005 14:19:32 -0700, Peter
wrote: Main reason is that other planes will be using pressure-based altimeters so maintaining separation can only be done when everyone uses the same method with the same errors. Boaters run into this problem all the time (as it were). The GPS is more accurate than the chart. Not a problem when it comes to buoys, since NOAA uses GPS now when setting them in place, but a big problem when it comes to rocks. They were charted by optical means. -- all the best, Dan Ford email (put Cubdriver in subject line) Warbird's Forum: www.warbirdforum.com Piper Cub Forum: www.pipercubforum.com the blog: www.danford.net In Search of Lost Time: www.readingproust.com |
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