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#1
March 4th 20, 08:42 PM
posted to rec.aviation.soaring
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cambridge 302
Just bought a used CAI 302 from W and Wh; unfortunately many accessories
are missing incl. the CD. I have installed and run the 300 support program, and configured the 302 for my PIK 20E. Turn on does the usual start routine, but settles with +2kts indicated. Any ideas? John Firth ( old but no longer bold pilot) 
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#2
March 4th 20, 09:10 PM
posted to rec.aviation.soaring
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cambridge 302
Is it in cruise mode? What happens when you switch it?
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#3
March 4th 20, 11:03 PM
posted to rec.aviation.soaring
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cambridge 302
John
When you power it up make sure the sun is not on the 302 face. Having sun on the instrument face can cause your problem. Nick
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#4
March 5th 20, 03:37 PM
posted to rec.aviation.soaring
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cambridge 302
On Wednesday, March 4, 2020 at 3:42:52 PM UTC-5, john firth wrote:
Just bought a used CAI 302 from W and Wh; unfortunately many accessories are missing incl. the CD. I have installed and run the 300 support program, and configured the 302 for my PIK 20E. Turn on does the usual start routine, but settles with +2kts indicated. Any ideas? John Firth ( old but no longer bold pilot) It seems "netto" mode causes the offset but 2kts? Anyway, TE mode restores the zero. John F
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#5
March 5th 20, 05:44 PM
posted to rec.aviation.soaring
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cambridge 302
On Thu, 05 Mar 2020 07:37:22 -0800, john firth wrote:
On Wednesday, March 4, 2020 at 3:42:52 PM UTC-5, john firth wrote: Just bought a used CAI 302 from W and Wh; unfortunately many accessories are missing incl. the CD. I have installed and run the 300 support program, and configured the 302 for my PIK 20E. Turn on does the usual start routine, but settles with +2kts indicated. Any ideas? John Firth ( old but no longer bold pilot) It seems "netto" mode causes the offset but 2kts? Anyway, TE mode restores the zero. Netto mode generally needs to know the glider's polar since its trying to tell you what the air is doing rather than whether the glider is climbing or sinking, so it might be a good idea to see what glider polar is set in the 302 and whether it matches your glider. IOW it looks as if this is what the 302 thinks is going on: since it sees neither climb or sink on the bench, but is showing +2 kts, it must have assumed a sink rate for the glider in still air of 200 fpm, so therefore the airmass must be rising at +2 kts for the bench to be neither climbing nor sinking. Or something like that. -- Martin | martin at Gregorie | gregorie dot org
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