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Old November 10th 07, 02:19 AM posted to rec.aviation.soaring
Marc Ramsey[_2_]
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Posts: 211
Default SeeYou Mobile Question (units)

Greg Arnold wrote:
Marc Ramsey wrote:
Greg Arnold wrote:
Paul Remde wrote:
Hi Dave,

Yes. SeeYou gets airspeed and wind data from the 302. The 302
calculates
the wind - not SeeYou.

So the 302A not only is a logger, but also has a computer that
calculates wind?


No, the 302 flight computer calculates wind. The 302A flight recorder
does not...

Marc


The 303 manual says that the 303 calculates the wind. Why would it do
that if the 302 does the same thing?


I've never actually used a 303, but there are several things it will do
when connected to a 302, that it simply doesn't do when connected to a
302A. Displaying wind may be one of them.

I don't understand why Cambridge would go to the expense of putting a
wind calculation computer in the 302 when the 302 always will be
connected to another instrument (303 or PDA) that can calculate the
wind. Basically, wind calculation in the 302 would serve no purpose, it
seems.


I wrote my own PDA software, and have used it with both a 302 and a
302A. The 302 data stream contains wind speed and direction (which is
pretty close to what I calculate using my own TAS/GS based circling wind
calculation) and headwind component (along with a bunch of other data),
the 302A does not. Make of that what you will...

Marc