Rhino4 Posted February 19, 2009 Posted February 19, 2009 Okay, I've RTFM and searched the forums. I give up. When on wp1 the heading pointed on my HSI points in the right direction, but the course line points off in some crazy direction and the course deviation lines are inactive. Is there a button I've missed or is this just something that happens with the first wp?
Frederf Posted February 19, 2009 Posted February 19, 2009 (edited) The white arrow on the HSI is the desired track angle (DTA) pointer and displays the desired track angle along waypoints in a route (it only points at a waypoint when you are on the track and the steerpoint is also the waypoint.) I say steerpoint and waypoint since they are different. The angle is defined as the course from the previous waypoint to the current one. Since there is no waypoint previous to waypoint 1 the track angle for that leg is not defined and the DTA needle assumes a default position when waypoint 1 is selected. Edited February 19, 2009 by Frederf 1
Rhino4 Posted February 19, 2009 Author Posted February 19, 2009 Aaaaaaaaaah.....Thanks for the clarification. The angle is defined as the course from the previous waypoint to the current one. Since there is no waypoint previous to waypoint 1 the track angle for that leg is not defined and the DTA needle assumes a default position when waypoint 1 is selected. This makes perfect sense.
Frederf Posted February 20, 2009 Posted February 20, 2009 Yeah I got confused about it before. I figure it might assume that previous to WP1 is AF1, but that's for Kamov's suggestion box. Notice also that the DH-DT switch in the DT position navigating to WP1 will do simple homing (as if switch is in DH mode) since there's no track angle defined.
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