CDU Waypoint Problem

[Alexrey]

Hey guys,

 

I recently learnt how to get co-ordinates from a JTAC and stick them into my CDU waypoint page. I'm having a few problems though and hope that someone could help me out.

 

1) What is the importance of setting the STEEP PT dial in the AAP to FLT PLAN or MISSION, what exactly is the difference?

 

2) Sometimes, once I've entered a new waypoint into the CDU from JTAC co-ordiantes, and then want to enter another set of co-ordinates for a second JTAC target I get one of two errors and the only way that I can rectify them is by turning the CDU off and then on again (which I'm sure isn't very good for the system as I get the "WARM START" error). The first type of error is when all of the fields in the waypoint page are full of asterisks and I'm unable to enter any data. The second type of error is when the waypoint page is stuck on the mark point page and, again I cannot enter any data or change to the standard waypoint page.

 

These two problems have really baffled me and I'd like to figure them out. Any help would be appreciated, thanks guys.

[LostOblivion]

1. The STEER PT dial selects the current steer point mode to use. If set to FLT PLAN it will only let you go select steer pts from the waypoints in your flight current flight plan. If you have made other waypoints (e.g. from JTAC or an bulls offset) you want to set this to MSN for it to show all waypoints. Not sure why it's called MSN, but in this mode it shows all waypoints, including the ones in all your flight plans, as well as all the navigation points (airports) and the bullseye. Remember that you can also use the UFC to toggle between different modes with FUNC + 7,8,9.

 

2. Not sure why this happens, but once it happens you can correct it by typing in an existing wp number, say, 0, into the scratchpad, then hit the waypoint select on the left side of the CDU. This solves both problems. I'm also interested in knowing what causes these two problems...

Edited July 3, 2011 by LostOblivion