Warren Allred wrote:Tim Taylor wrote:
In other words, iFly has no idea what direction you are facing (heading) or what the wind direction is. All it knows is your track and speed over the ground. Therefore, all it can indicate is ground track and ground speed.
Then how was my ground track 025 degrees while track says 016 degrees. It stayed this way for 30 minutes with a dead on crosstrack error os less than a few hundred feet since I had the x-wind compoent nailed.
My GNS 530 showed a DTK and current Track of 025.
Are they both using magnetic? Maybe your iFly is set on true north.
Let's turn this question around. How could iFly show you heading? Does your GPS have some sort of arrow on it that says "always point this arrow toward the nose of your airplane"? The only time iFly shows you heading is in a no wind situation where heading equals track.