peschges vp4 issue

[pt071]

(dead) ,,,,,,,,,

[Darryl Ramm]

On Thursday, August 16, 2012 1:02:51 PM UTC-7, pt071 wrote:
> Hello,
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> I bought LS4 glider equipped with old peschges vp4 vario... Everything
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> works fine, except one thing... when I switch from climb mode to
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> speedcommander, It works weird... With correct setings of polar, MC and
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> loading, it shows me to fly too fast. For example, when I set MC0 and
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> fly 160km/h, it wants to fly more more faster... Does anybody have any
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> idea where could be problem? I know, vp4 is old scrap.... but I�m
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> curious :)
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> Thanks
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> --
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> pt071

Have you calibrated the TE compensation as described in the manual?

Of course your actual glider performance could be screwed up and the vario has you chasing real glider sink in excess of the polar... you should be able to futz with the "polar penalty factor" to stop that.

Darryl