View Single Post
  #10  
Old September 2nd 08, 07:31 PM posted to rec.aviation.soaring
Martin Gregorie[_4_]
external usenet poster
 
Posts: 165
Default Wanted: cheap audio vario

On Tue, 02 Sep 2008 05:25:09 -0700, Ian wrote:

On 2 Sep, 11:57, Martin Gregorie
wrote:
On Tue, 02 Sep 2008 02:04:19 -0700, Ian wrote:


I think the M-nav is a bit more recent than your CAV50. As its an 80mm
instrument, it may be worth grabbing one if you see it.


Thanks. However, I think anything with "nav" in its name would be too
expensive. We're talking Pirat, here...

Understood.

I managed to record the wrong name in my notes because I found the
Cambridge website confusing when it came to identifying and naming their
older instruments. Cambridge call the vario we had in the Peg a Mk 4
Vario. I described it correctly, though I had the name wrong. It is just
a simple audio vario with selectable sensitivities and response rates:

http://www.bas.uk.net/docs/Mk4_Vario.zip

Despite the URL this is the link from their site.

I have used an M-nav - our older Discus had one fitted. It worked OK as a
vario, but I never really liked the way it handled other functions. You
had to manually put the final glide distance and wind in on toggle
switches because it had no GPS link, though in fairness it probably
predates GPS. Once the final glide details were entered entered, it
counted distance etc down on dead reckoning. That has also been replaced
with a C3.

I don't know what happened to either instrument though I can try to find
out if you're interested.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |