On Fri, 29 Aug 2008 10:13:19 -0700, Ian wrote:

Folks,

I'm after a cheap audio vario for the Pirat, to replace a CAVII.
Requirements are (a) cheap (b) 80mm (c) cheap (d) working (e) cheap.

I'd suggest:

(1) used Borgelt B.40. I'm very pleased with mine.
(2) Tasman V 1000, used if you can find one.

Why the instance on 80mm? you can always use an 80-57 adapter plate.

The B.40 is available in both 57 mm and 80 mm though I think the latter
may be rare. Used because its been superseded by the B.400, which I
haven't seen yet. I got a used B.40 with dodgy main switch and dead
audio, and promptly sent it back to Mike Borgelt, who did an excellent,
fast overhaul for a very reasonable price. The total cost was under 2/3
the cost of a new Tasman: at that time both were available new at the
same price. Its one drawback is that you need to press a button to read
the average climb rate. I like the fact that it has a backup get-you-home
PP3 strapped to the back of it and a power switch that lets you select
12v from the glider or the PP3.

I've also flown with a Tasman and liked it too. The display is easy to
read, average is continuously shown and its noises are pleasant. It too
should run off a PP3 but you'd have to make your own battery box and
external change-over switch.

I was going try a Gizmo vario but the B.40 appeared at a price I couldn't
refuse. I don't know anybody who has a Gizmo, but its spec is OK despite
the unusual vertical ribbon display. Like the V.1000 it will run off a
PP3 but again you'd need to make your own change-over etc. Judging by the
on-site demo its easy to read and sounds good. It's also the cheapest new
vario I'm aware of. http://www.gizmo-instruments.co.uk/

HTH
Martin


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martin@ | Martin Gregorie
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