OE-LML wrote in Mon Sep 19, 2022 4:46 pm:But during take-off I get FD guidance for pitch axis only. The flight mode annunciator for HDG/NAV stays blank after lift-off until I pull the HDG knob.
Further I use different thrust reduction and acceleration altitudes, e.g. 2500/3500. In this example I would set climb thrust at 2500 and turn up the speed bug at 3500 for flap retraction or constraints (if there are any).
If I am a little bit late with turning the speed up, FD will command an attitude to decelerate back to V2.
thx.
You not getting anything on the roll axis is expected because we don't have RWY guidance yet.
Now I see you're saying that you're using selected modes... what I'm wondering is, are you using managed speed or selected speed as well? Is only your pitch and roll selected, or your speed as well?
Because if you use selected speed you have to select your target speed on the FCU. Otherwise, it will go back to the default 100 knots (and it will go to
VminOnly if you're using managed speed (dashes on the FCU speed display)If, however, you're using managed speed with selected pitch and roll modes, which is fine by the way, it would not be correct to go back to V2. If that's the case, I'm actually wondering if you've got a different problem to V12. Maybe
you have it going into approach mode accidentally. Maybe you could also check the PERF page, and see if you have CLIMB or APPROACH?