In a message dated 4/23/2003 8:56:32 AM Pacific Standard Time,
rparigor@suffolk.lib.ny.us writes:
>
> >Besides being more expensive, is there any reason that a Variometer can
> not take the
> >place of a ROC?
>
For the variometer to do its job, it really needs to be connected to a total
energy probe. With that, it really doesn't do the same thing as a VSI. I have
both in mine -- a Tasman variometer, which goes for about $450 and is
electronic - no moving parts. So far it works very well.
Dave A227
mini U2
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