Problem Thrusters going crazy...

[rektiphier]

Hi all, I've been playing Orbiter for a while now (couple years) but I've only just started practicing re-entries. The problem is every time I get into orbit around the planet (earth or mars), and start descending, my thrusters go crazy and I spin out of control. The first time it happened I thought I had just put on an AP too far into atmo by accident and it went nuts. But it keeps happening, and I've made sure its not me. I make sure my engines aren't on, thrusters are set to OFF, and no AP (not even kill rot). Still happens. The last time I tried setting AoA AP to 2.5 degrees. I was at 130km altitude around earth, facing forward, AoA AP turned on, with BaseSync and aerobrake all set up. Then the spinning starts. It makes absolutely no sense to me, and it ruins every single flight.

I should also mention that this happens with both the XR5 and XR2 during re-entry to either earth or mars.

Has anyone had this happen? Does anyone know how to stop this?

 

[worir1]

check the bank on the AP. do you just spin or do your engins turn on? what altitude does this happen at and what is your PeA when deorbiting?

 

[csanders]

The XR's have their own autopilot, and aerobrake has it's own autopilot.

You don't have them both on do you? They might be fighting each other.

Also, don't use timewarp under 100K.

 

[rektiphier]

The XR's have their own autopilot, and aerobrake has it's own autopilot.

You don't have them both on do you? They might be fighting each other.

Also, don't use timewarp under 100K.

You're right -- I noticed it today. Aerobrake's autopilot was on :facepalm: To be honest I didn't even know it had autopilot; I thought the AoA button was telling aerobrake to use my current AoA in calculations. That's what happens when you don't rtfm lol. Thanks guys :thumbup:

 

[csanders]

You're right -- I noticed it today. Aerobrake's autopilot was on :facepalm: To be honest I didn't even know it had autopilot; I thought the AoA button was telling aerobrake to use my current AoA in calculations. That's what happens when you don't rtfm lol. Thanks guys :thumbup:

Yeah, I made the exact same mistake.

It would be nice is aerobrake would use user-set values for AoA and bank, but I'm not sure it's possible.

Does anyone know if an MFD can query a vessels properties to get its aerodynamic response characteristics, or do they have to just see how the vessel responds in atmo (which is how aerobrake appears to work).

 

[worir1]

i wonder what would happen if you used Shuttle A with aerobrake

 

[769270865]

i wonder what would happen if you used Shuttle A with aerobrake

I don't think that thing could re enter.Go try it!