|
A320 FMGS creating turning point based on altitude
Hello fellow aviators, any of you guys know if it is possible to create a waypoint on the FPLAN A pg in terms of altitude? i mean like, after taking off, a waypoint based on altitude instead of P/B/D, or P/D etc etc. You know, like the waypoints you usually see on the missed approach procedure, example 3000-> meaning at 3000ft right turn to etc etc..
|
no..............
|
Those are commands defined in ARINC 424 which are programmable but only when designing SIDs oder STARs with a software which can write the required format for the FMS.
Some FMS actually allow construction of those within the FMS (the UNS do I think) but on the Airbus there is no way to create such an instruction by the pilot. (Well, you could select some departure which has a 3000' turning point and delete everything around it and use the point only, but in most cases this will not be practical as you can select only one departure.) |
Thanks Cav-Not-Ok and Safelife, i guess manual flying then..., my company hasn't update the FMGC database yet for the new SID and STAR..sad:{
|
Some FMS actually allow construction of those within the FMS (the UNS do I think) |
If you don't mid me asking, whats "UNS"?
|
Good Lord man! Manual flying!? Whatever next? |
Its called a conditional waypoint, the only way you can create one is if you select the NO SID option, and that will give you and active leg from the RWY to the thrust reduction altitude which is pretty close to the minimum height for turns in IMC or night, unless other wise specified.
|
How about creating your place/bearing/distance waypoint. Make sure you've checked it 3 times!! Then vertical revision at your PBD +3000.
I have no idea if its possible to designate a left or right turn with that little arrow you see. I had to do something similar on our secondary flight plan as our particular Navigation Database update did not have our company specific EOSIDs. I would only have it as a reference pseudo-waypoint and would then go selected heading to turn left or right depending where the highest MSA is located. |
Good Lord man! Manual flying!? Whatever next? |
Thank God for that. I thought for a moment you were going to fly with the autopilot out. Need a sit down and a stiff drink to recover after that little scare... |
SW1
How about creating your place/bearing/distance waypoint. Make sure you've checked it 3 times!! Then vertical revision at your PBD +3000. I have no idea if its possible to designate a left or right turn with that little arrow you see. I had to do something similar on our secondary flight plan as our particular Navigation Database update did not have our company specific EOSIDs. I would only have it as a reference pseudo-waypoint and would then go selected heading to turn left or right depending where the highest MSA is located. |
Creating a PBD waypoint with an altitude constraint won't help.
If it is too close, the A320 will not try to make that altitude, just the contraint will turn amber and the MCDU will display "Altitude error at WPT". If it is too far, it will carry on until the waypoint before turning even if it is higher already way before. You could find a distance at which you will just reach this altitude, but it's not practical to do so as this distance will vary depending on aircraft weight, wind and all. |
Safelife, if im not mistaken, if we enter departure without SID, there will be a discontinuity?
|
if you don't delete it, yes. The aircraft will then carry on straight ahead until further.
|
Use that technique until we reach the correct height to turn, then DIR to the next waypoint?
But if using this method, should we use the HDG knob to preselect the rwy track initially? |
You don't need to do that with the airbus.
(if you do, you maintain runway heading. If you don't, you maintain runway track...) |
Got it, thank you very much buddy
|
| All times are GMT. The time now is 14:05. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.