Problem Loss of control of DG Mk IV at high time warp

[dehat42]

Anytime I increase the time warp for the Delta Glider more than 100x, and for more than 5-10 seconds, I lose control of the vehicle. Any idea what causes this?

 

[insanity]

Did you cancel out your rotational movement using KillRot?

 

[dehat42]

Tried to...nothing works. None of the buttons or keys for KillRot, Prograde, Retrograde, etc seem to work, and none of the thrusters work either, I just go tumbling through space.

 

[Quick_Nick]

Joystick?

 

[dehat42]

Not using a joystick on the computer. Everything is either keyboard controlled or clicked on the screen with the mouse.

 

[Urwumpe]

Not using a joystick on the computer. Everything is either keyboard controlled or clicked on the screen with the mouse.

Have you been close to a planet?

 

[dehat42]

Well...I am trying to accelerate time in a trip to the moon from earth...would I have to wait for a while before I increased time in such a manner?

 

[Castor]

Well...I am trying to accelerate time in a trip to the moon from earth...would I have to wait for a while before I increased time in such a manner?

In such a trip, you should be able to accelerate time safely to/more than 100x.

When you mentioned that you lose control, did you mean that your spacecraft was flung to Nan space ?

 

[dehat42]

The HUD display is usually showing...when I go to 1000x, it goes all over the place, and the forward view is spinning wildly. If I stop it in time, it acts normal. If I have the 1000x more than about 5-10 seconds, I am still in normal space, but the ship is still spinning out of control, and I cannot use any controls to make it stop.

 

[Castor]

Ensure that all Nav modes are switched off. If you are using IMFD or LTMFD to go to the moon, make sure Autoburn has shut down.

 

[Urwumpe]

Well...I am trying to accelerate time in a trip to the moon from earth...would I have to wait for a while before I increased time in such a manner?

You should remember that every key press and every small joystick input lasts 100 times longer at x100. Every perturbation by Earths gravity or Earths atmosphere lasts 100 times longer.

Not sure on the DGIV there, was a while ago that I flew with it, but a small amount of thrust by a weak thruster or a APU exhaust lasts 100 times longer and can thus have the same effect as much stronger thruster in real-time.

Thus - yes, it is important to slowly ramp the time warp up and stay completely away from the control at all costs. ideally disable RCS for longer coast phases, if you want to be on the safe side. Don't activate any autopilot and don't have any autopilot active, unless this autopilot is designed for high time-warp factors.

Your behaviour sounds very much like either you accidentally pressed a key in time warp or had an autopilot mode activated. Or experienced some undesired lunar lithobraking.

 

[Castor]

Not sure on the DGIV there, was a while ago that I flew with it, but a small amount of thrust by a weak thruster or a APU exhaust lasts 100 times longer and can thus have the same effect as much stronger thruster in real-time.

Now I am confused. Is dehat42 talking about the DGIV or the default DeltaGlider Mk 4 ? If it's the DGIV, he could easily try turning off the RCS valves on the bottom panel.

 

[Urwumpe]

Now I am confused. Is dehat42 talking about the DGIV or the default DeltaGlider Mk 4 ?

I am not sure. Maybe he mistakes the Deltaglider Mk 4 with a Deltaglider IV, which are completely different spacecraft, despite the similar name. There is no Deltaglider Mk IV.

 

[ThaGuy]

Sounds like normal Orbiter behavior to me, Do all your vessels spin like that?
If so, You could try this
AbsoluteKillrot v.1.2
[ame="http://www.orbithangar.com/searchid.php?ID=2899"]AbsoluteKillrot v.1.2[/ame]

 

[Castor]

Sounds like normal Orbiter behavior to me, Do all your vessels spin like that?
If so, You could try this
AbsoluteKillrot v.1.2

Absolute KILLROT cancels out residual rotation. Here, control of the vessel is lost after accelerating time to 1000x, so I doubt this will solve the problem. Just out of curiosity, did you read the whole thread ?

 

[dehat42]

It's the default Delta Glider Mk 4 in orbit scenario...

Just tried it having the "Prograde" turned off that had been turned on all the other times...success!!!!!

Even got the apogee/perigee points matched with the moon...now to have a little patience...

Thanks y'all!

 

[ThaGuy]

Yes.
All my vessels would apparently spin wildly at high time warp,
AbsoluteKillrot v.1.2 gives me a nice smooth ride all the way

 

[Urwumpe]

All my vessels would apparently spin wildly at high time warp,...

You have not carefully read the anomaly description.

The vessel spun wildly at high time warp and after going back to real-time, the situation persisted.

You simply describe the normal unobservable slow rotations accelerating to a wild spin when you speed time up. Rotating at 180°/s at x10,000 still only means that you rotate at terribly slow 0.018°/s in real-time (or: One full rotation in 20,000 seconds, about four per day).

<In my horrible opinion>

Absolute kill-rot also works at high time-warps, but that tool is practically cheating, since it stops any rotation without caring about conservation of impulse (e.g. expending fuel, spinning another mass up or changing the rotation axes of multiple gyroscopes).

Also, it does not teach you, how much tolerance you need for a phase of flight, which is one important aspect in Orbiter. Sometimes, you need to be accurate to the arc second, in other phases, it isn't even important to have any special attitude. Or you need to be accurate to +/- 20° in just one axis.

The many celestial bodies will not only make your spacecraft differ from the simple Kepler course, but also will make your spacecraft slowly spin by gravity gradient. Its ok. Fighting it all the time will consume more fuel than eventually cancelling out the current deviation in the moment you need more accuracy.

</In my horrible opinion>

 

[n122vu]

For What It's Worth...

Tried to...nothing works. None of the buttons or keys for KillRot, Prograde, Retrograde, etc seem to work, and none of the thrusters work either, I just go tumbling through space.

... If I stop it in time, it acts normal...

I think this is what was throwing a couple of people off. After looking at both statements, your issue (which I'm glad you resolved by disabling Prograde before accelerating time :tiphat: ) seemed to be that once you were tumbling while under time acceleration, you couldn't stop tumbling while under time acceleration, and the thrusters didn't appear to respond. Am I reading that right?

Once you dropped to 1x time, you could null out the rotation, correct?

 

[Castor]

It's the default Delta Glider Mk 4 in orbit scenario...

Are you flying with unlimited fuel ? It would a hell lot of fuel to align planes with the moon in that particular scenario.