Dejjvid Posted February 25, 2014 Posted February 25, 2014 I can't get the vertical steering bar to work in STPT mode, only show up in ANCHR mode. I set 3D, COMPUTED and it works fine with ANCHR. Working as intended, user error or bug? i7 8700K | GTX 1080 Ti | 32GB RAM | 500GB M.2 SSD | TIR5 w/ Trackclip Pro | TM Hotas Warthog | Saitek Pro Flight Rudder [sigpic]http://www.132virtualwing.org[/sigpic]
NoCarrier Posted February 27, 2014 Posted February 27, 2014 PEBCAK, probably. As it happens I tried VNAV steering recently as well, and I had no problems getting the steering bars to work in STPT mode. I have found that the steering bars get (obviously) very finicky when you set the scale to High Accuracy, so maybe that's your problem?
NoCarrier Posted February 27, 2014 Posted February 27, 2014 I just had a brainwave and am pretty certain what the problem is, but I'm on a smartphone and need a keyboard to type it all out. Stand by.
NoCarrier Posted February 27, 2014 Posted February 27, 2014 Okay, it seems my first post was partially mistaken, as the pitch steering bar will only show up when you are in EGI/STRPT mode, with the waypoint Scale attribute set to APPROACH, and VNAV mode to 3D. Then the CDU will either compute a vertical angle for you (in TO TO mode), or you'll be able to enter a vertical angle manually (in TO FROM mode). In either case, you'll see a pitch steerin bar, but once again, only if you have the waypoint Scale set to APPROACH. From what I can tell, setting the waypoint steering mode to TO FROM essentially turns your steerpoint into a TACAN beacon, as far as the HSI goes. The Course Deviation Indicator, the To-From Indicator and Course Arrow will all work the same. The TO FROM steering mode will also allow you to enter a manual vertical angle. The TO TO steering mode is pretty similar to the TO FROM steering mode, except for the fact that the selected course is now dependent on a From-waypoint that you can select through the FROM PT page. The ATTRIB page will tell you which HSI course to dial in, as this isn't automated. Why am I telling you this? Because waypoints can have waypoint-specific attributes but also flight plan-specific attributes, which override the waypoint-specific attributes! So, for example, if you manually set waypoint 2 as a "TO FROM" steering mode waypoint, APPROACH scale, VNAV 3D and a VANGLE of -3, but refrain from changing the "TO TO" VNAV 2D flight plan attributes of that waypoint, the CDU will still consider it a "TO TO" VNAV 2D steering mode waypoint as long as that waypoint is part of the flight plan. And A-10C fliight plan waypoints are nowadays set to "TO TO" by default, with the previous waypoint as the From-waypoint. I think this is the part that is tripping you up! So, the easiest method would just be to start a new waypoint not part of any flight plan and then adjust its attributes. Set the Scale to APPROACH, set the VNAV mode to 3D and punch in the vertical angle. Now you should see that pitch steering bar. The one thing I can't figure out—don't ask me the reasoning behind those esoteric "TO TO" and "TO FROM" waypoint attribute names. I've been racking my brain for weeks over this. 1
Dejjvid Posted February 28, 2014 Author Posted February 28, 2014 Excellent answer, it seems plausible. I will test this the next time i fly! If we find some documentation for the "advanced" CDU functions it would be awesome, the manual is lacking this information. i7 8700K | GTX 1080 Ti | 32GB RAM | 500GB M.2 SSD | TIR5 w/ Trackclip Pro | TM Hotas Warthog | Saitek Pro Flight Rudder [sigpic]http://www.132virtualwing.org[/sigpic]
NoCarrier Posted March 1, 2014 Posted March 1, 2014 Fortunately (or unfortunately, depending on your point of view), the above is about as advanced as the DCS A-10C CDU gets. The wind profiles on the WIND page don't do anything, and all the other pages are either DTS, GPS/INS pages or TEST/Bitball pages. In the sim, those functions either work by FM (F'ing Magic), or they would only be used by maintenance people in the real jet and they are eye candy only.
Flagrum Posted March 1, 2014 Posted March 1, 2014 Fortunately (or unfortunately, depending on your point of view), the above is about as advanced as the DCS A-10C CDU gets. The wind profiles on the WIND page don't do anything, and all the other pages are either DTS, GPS/INS pages or TEST/Bitball pages. In the sim, those functions either work by FM (F'ing Magic), or they would only be used by maintenance people in the real jet and they are eye candy only. At least the Laste Wind pages do something - but they do no magic and thus it is somewhat difficult to actually set up some test where it becomes visible what they do. :o) (i.e. with a single low-medium wind layer in the ME the IFFCC already does a decend job for wind correction without additional laste wind layers. In complex weather conditions though, even the laste wind correction can't do magic and comes to it's limits quickly) There were some fixes in, I think, 1.2.5 and 1.2.6 that made the laste wind correction functional again.
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