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[Bug] SAS Controls Do Not Work


Scarecrow71

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The game has become unplayable for me in its current state for the following reasons:

  1. Loss of control during flight while thrust is on.  Gravity turns generally start at 100 m/s (turn to 80 degrees), then get a bit aggressive at 4000 meters altitude (turn to 65 degrees), and then get to about 45 degrees at around 15-20km above ground.  During gravity turns, I'm seeing uncontrollable spinning of the craft, which is a loss of control during flight.
  2. Loss of control after killing thrust.  There are times where you shut the throttle off and the craft starts to spin, slowly at first, but gradually getting faster and faster.  And you cannot get control of the craft again.
  3. SAS Hold does not work.  When you set a maneuver, you generally click the Node button to point your craft in the right direction for the burn.  Unfortunately, when you start the burn, whether you hold the node or not, the craft starts to veer away from the node marker, pushing your trajectory into a direction you did not want it to go.  This forces you to either:
    1. Use multiple small burns, reorienting your craft every few seconds, which then leads to an undesired final trajectory; OR
    2. Revert to launch or your last save because you are unable to reorient your craft during the multiple small burns.

All of these are included in the video below I made this morning.  For posterity, the craft was a small HECS2 probe with an antenna and some solar panels on it, with fairing for aerodynamics and an asparagus-staged rocket to get into orbit and then, I hoped, to Duna.  Unfortunately, due to all of the issues presented, I cannot even get into orbit with this craft.  I also want to point out that I can take a similar build of this craft and not only get it into orbit in KSP1, but I can get it all the way into Duna orbit.  With no problems.

To me, this is the #1 thing - apart from performance - that needs to be fixed in the first patch.  I simply cannot play this game having to fight the flight controls the whole way, and I'm not the only one experiencing this.  Please, Devs, fix this.  ASAP.  When you are holding SAS, the craft should not drift.

 

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After further investigation, this is not a bug, but rather a design element that was intentional by the devs.  It seems that KSP1 has a really easy SAS control to use, but the devs want to make KSP2 more life-like with flight controls.  Going to make the game harder, but that is not a bug.  Yet.

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1 hour ago, MechBFP said:

What engine are you using?

I don't have any issues with SAS holding just fine on the crafts I have made.

I have essentially figured out I'm using roo mich engine.  I am always going Mammoth or Rhino, but that is giving me too much TWR.  I need to break down the vessels and use smaller engines on the craft I'm building.

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1 minute ago, Scarecrow71 said:

I have essentially figured out I'm using roo mich engine.  I am always going Mammoth or Rhino, but that is giving me too much TWR.  I need to break down the vessels and use smaller engines on the craft I'm building.

Alternatively you can reduce the gimbal range on those engines to prevent SAS from over correcting.

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1 minute ago, MechBFP said:

Alternatively you can reduce the gimbal range on those engines to prevent SAS from over correcting.

Yeah.  My issue no longer is in a vacuum; I have figured out that RCS truly is my friend.  No, my issue is still ascent where I seem to have a problem flipping over.  Too much engine, so when I start to turn it turns eith too much thrust too fast.  I have multiple designs from KSP1 that I can try to implement here that should work.  SHOULD, he said knowing this is EA.

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49 minutes ago, Scarecrow71 said:

Yeah.  My issue no longer is in a vacuum; I have figured out that RCS truly is my friend.  No, my issue is still ascent where I seem to have a problem flipping over.  Too much engine, so when I start to turn it turns eith too much thrust too fast.  I have multiple designs from KSP1 that I can try to implement here that should work.  SHOULD, he said knowing this is EA.

There are bugs right now with drag being excess on some parts and fairings not working at all if some parts are placed under them. 
So that is likely a huge reason. Fly the same ship in KSP with no fairing and you will see similar results. 

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