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flybywiresim / aircraft

The A32NX & A380X Project are community driven open source projects to create free Airbus aircraft in Microsoft Flight Simulator that are as close to reality as possible.
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TCA airbus throttle issues #8464

Closed Jordology closed 7 months ago

Jordology commented 7 months ago

Aircraft Version

Stable

Build info

{
    "built": "2023-11-03T17:47:36+00:00",
    "ref": "refs/tags/v0.11.1",
    "sha": "f055eb02dc0af32441f8b2873f58e8316d7ca638",
    "actor": "Saschl",
    "event_name": "manual",
    "pretty_release_name": "stable/v0.11.1",
    "version": "v0.11.1-rel.f055eb0"
}

Describe the bug

FBW version 0.11.1 MSFS version 1.36.2.0

When the tca throttle is at climb, the aircraft power is at 82.4%. I have calibrated multiple times and the detents are all correct even in the virtual throttle they are correct, but the aircraft power is at 82.4%

Expected behavior

throttle power should be at climb

Steps to reproduce

connect tca throttle calibrate turn on engines and everything else as normal set throttle to climb

References (optional)

No response

Additional info (optional)

No response

Discord Username (optional)

No response

Sleinmaster commented 7 months ago

82.4% for climb and even for Toga is completely normal. It very much depends on the outside conditions like temperature and pressure how many % N1 you'll get. Also the 100% N1 is some arbitrary number that was determined for one engine.type. The engines evolved since then and with have different maximum numbers.

Jordology commented 7 months ago

Wait, so my throttle should be extremely sensitive? It was never like this before, has something been changed? Climb was always around 50% with these settings, what’s changed?

Jordology commented 7 months ago

82.4% for climb and even for Toga is completely normal. It very much depends on the outside conditions like temperature and pressure how many % N1 you'll get. Also the 100% N1 is some arbitrary number that was determined for one engine.type. The engines evolved since then and with have different maximum numbers.

Wait so what should the power for each detent be? Climb has always been. Around 60 for me, quite confusing now haha. Has anything changed?

jbud commented 7 months ago

There seems to be some confusion here. Can you share screenshots of your findings so we can clear it up?

tracernz commented 7 months ago

Also check that you have setup a linear curve. The default MSFS TCA profile is not useful as it has a very odd curve.

Jordology commented 7 months ago

Also check that you have setup a linear curve. The default MSFS TCA profile is not useful as it has a very odd curve.

What should the settings be?

Eearslya commented 7 months ago

Also check that you have setup a linear curve. The default MSFS TCA profile is not useful as it has a very odd curve.

What should the settings be?

Linear. As in, a straight line.

image

Jordology commented 7 months ago

Also check that you have setup a linear curve. The default MSFS TCA profile is not useful as it has a very odd curve.

What should the settings be?

Linear. As in, a straight line.

image

Yep, my calibration settings look like that. its not an issue with the throttle or the axis though, its the plane itself.

see below (and yes i've calibrated through the EFB)

image

Eearslya commented 7 months ago

All of that looks perfectly fine to me. Like others have said already, CLB thrust doesn't necessarily mean 100% N1. Even TOGA doesn't necessarily mean 100% N1.

As long as the throttle in game matches your controller, it's calibrated correctly.

Jordology commented 7 months ago

There seems to be some confusion here. Can you share screenshots of your findings so we can clear it up?

posted above

Jordology commented 7 months ago

All of that looks perfectly fine to me. Like others have said already, CLB thrust doesn't necessarily mean 100% N1. Even TOGA doesn't necessarily mean 100% N1.

As long as the throttle in game matches your controller, it's calibrated correctly.

See its odd because its never done this before, climb has always been 50-60% (cant remember exactly)

Sleinmaster commented 7 months ago

All of that looks perfectly fine to me. Like others have said already, CLB thrust doesn't necessarily mean 100% N1. Even TOGA doesn't necessarily mean 100% N1. As long as the throttle in game matches your controller, it's calibrated correctly.

See its odd because its never done this before, climb has always been 50-60% (cant remember exactly)

In the upper right corner of the ecam the plane will tell you what detent it expects and what the max N1 for that detent is. In the case of your screenshot TOGA is limited to 83.4 % N1 and climb, once you've taken off, will probably be something similar.

Screenshot_20240205-105136

Maximilian-Reuter commented 7 months ago

All of that looks perfectly fine to me. Like others have said already, CLB thrust doesn't necessarily mean 100% N1. Even TOGA doesn't necessarily mean 100% N1. As long as the throttle in game matches your controller, it's calibrated correctly.

See its odd because its never done this before, climb has always been 50-60% (cant remember exactly)

You seem to be a bit confused over what the Autothrust does. The autothrust system will vary the thrust between idle and the current position of the thrustlevers. So if you have your thrustlevers in CLB it will modulate the thrust between idle and the maximum thrust it has calculated for the clb detent. usually during climb you will see values in the 80% range. In cruise it will depend on your speed.

In the end the thrust limits are dynamic and are calculated based on external factors like outside temperature and things like that.

TL:DR not sure what you were seeing before but what you are seeing now is completely normal and expected

2hwk commented 7 months ago

Not a bug, closing.