Problem XR2 gear keeps collapsing on taxing to runway

[Robbyd]

Hello fellow Orbinauts!
I'm running Orbiter 2010-p1 (as I like the UGCO cargo /Arrow spacecraft aspects it runs well). But recently Ive had problems with the XR2 Ravenstar (1.6a version for 2010) in that the undercarriage collapses on normal taxi after warnings of "wheels down" etc - as if we are bouncing on landing. In fact I can see multiple measurements of "Landing Speed" indicated in the onboard computer display and the gear collapse happens once the usual limits are reached. This happens at low forward speeds (<20m/s). I've reinstalled the whole orbiter 2010 and XR2 suite 3 times now and it initially plays nicely then with a few scenario loads it starts happening again.

Anyone have any ideas on the possible cause - or have experienced similar issues?

 

[Urwumpe]

Hello fellow Orbinauts!
I'm running Orbiter 2010-p1 (as I like the UGCO cargo /Arrow spacecraft aspects it runs well). But recently Ive had problems with the XR2 Ravenstar (1.6a version for 2010) in that the undercarriage collapses on normal taxi after warnings of "wheels down" etc - as if we are bouncing on landing. In fact I can see multiple measurements of "Landing Speed" indicated in the onboard computer display and the gear collapse happens once the usual limits are reached. This happens at low forward speeds (<20m/s). I've reinstalled the whole orbiter 2010 and XR2 suite 3 times now and it initially plays nicely then with a few scenario loads it starts happening again.

Anyone have any ideas on the possible cause - or have experienced similar issues?

Not really an idea, and this version is pretty antique now, but I would check your framerates, since the limits are derived from the change in speed. Especially I would check if your framerates vary a lot.

Also, 20 m/s is not slow. Thats about 40 knots! If you taxi at that speed on a real airport, you would have a very angry tower shouting through your radio. Also, for rolling at that speed, you likely need more thrust and orbiter might decide because of that, that you are actually in flight and not on the ground anymore - and drop through the surface. If you get back below that limit, Orbiter brings you back above the surface... and the load on the wheels skyrocket for a frame.

 

[Robbyd]

OK thanks - I'll have a look at that.