Re: Density Altitude calculator for iphone...
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ctressler</div><div class="ubbcode-body">I'm glad somebody else has come up with the same solution to the FTE wind bug as me.</div></div>
Oh, it's is not a solution - we call it a "workaround".
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">I have emailed the author about this and also about the incorrect DA units on the FTE screen, but he hasn't replied or fixed them.</div></div>
1. Don't feel bad - he usually doesn't reply. I was dignified with a couple of answers from Jonathan in the past, but the total hit/miss ratio for my reports and questions is very poor.
2. It's still a very nice application - but in the field I tend to use Bullet Flight more. As I said before: FTE is an engineer's app, nice with lots of useful features, nice user interface. Bullet Flight is a soldier's app - nothing extra, not as flashy, but it gets your rounds on target fast (and its support is great!). Interestingly, now Bullet Flight is also available on 'Droid.
3. The source of that bug is in how JBM engine (that FTE uses) deals with wind direction input. For reasons unknown to me, JBM treats wind direction opposite to how everybody else does it (military, merchant marines, aviation) - for everybody else wind direction is the azimuth <span style="text-decoration: underline">from</span> where the wind blows, but for JBM it's the azimuth <span style="text-decoration: underline">to where</span> the wind blows. Probably now due to JBM's popularity it's too late to change (at least in the author's opinion).
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">As for the wind calls, we where shooting out in Ash Fork, AZ with the AZPRC group and the wind was gusty. Targets are set up from 200 to ~1100 yards, one had to stay aware of the changing conditions or shots were easily blown.</div></div>
What I'm saying is - you had some hits and some misses, right? Hopefully you recorded the shooting conditions (weather, etc) and both the predicted adjustments that you got from FTE and the actual adjustments that got you on target. So I'm thinking - if you key all that back into FTE but correct the wind input for this bug, would the predicted/suggested windage adjustment match your actual?
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">They had a target out at a mile, I think most everyone with a .338 or a large 30 caliber hit it at least once. The guys shooting 308 rifles were burning up a lot of ammo trying to hit that plate.</div></div>
That must be something! <span style="font-style: italic">I'd like to try a mile+ shot - but here it would end up in the next town, and they might object to serving as a target!
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