On Mar 25, 11:04*pm, Darryl Ramm wrote:

The 302 can be very good with wind just with straight straight flight
with changes in direction of +/- 30 degree or so.

That's BS.

My $0.02. I have a sample of one, but it has been extensively tested,
TAS output verified, pneumatic sources are from triple probe, not
shared, no leaks. It does not come close to being able to do what you
claim.

My pda does better vector wind calc using 302 data.

On a ridge, forget about updates, they don't happen.

Never *EVER* use the 303 relative wind indicator. It does not update
for ground track changes, it only updates when it gets a wind update
(huge oversight). On one memorable flight, I saw the relative wind
indicator 180 degrees wrong for a 65 mile run down a ridge in 12 knots
of wind. One smooth 360 turn at a 30 second or so rate will always
get a good vector wind.

Other major gotcha of 302 is lack of header for N-number. You'll
discover how much fun that can be when you submit a badge or record
flight with an electronic declaration.

As long as these flaws are understood, 302 is otherwise a very good
instrument. All it needs to be truly excellent is a firmware fix or
two. Unfortunately, I don't think that's in the cards.

-Evan Ludeman / T8