Landing Gear collapses

[Ben Redic Fy Fazan]

I've made a fighter jet with retractable landin ggear and when i'm pushing the throttle a little bit forward and the plane accelerates it just collapses. pls help

[Ra-Ra-Rasputin]

This is something that's very difficult to explain to someone who doesn't know how physics engines work internally, but if you have a system like piston suspension connected to a rotor, the piston suspension cannot hold the weight of anything because of the mass difference of it and the plane it's trying to hold up being too great.

The way to fix this is to attach some weight blocks to the same physics grid that the piston suspension is a part of, or work the suspension to be behind the rotor and weigh it down from there.

[SIeamLuki]

Raise Speed of your Hinge/Rotor, if you set it too low it wont have any power.

My front gear keept collapsing for no reason so i tried for 3 hours fixing it and in the end i added a second hinge and set the Ratio to 1:1 and speed 0.5 which is a little bit fast but it wont work under it.