i did have the exact same thing on my Buccaneer there where 2 things that causes this
- i had to remove the tailskid
- i had to change the ShockStroke
the shockstroke should be the the same as on the 3D model , if the stroke length is to long you have this catapult effect with some possible flip over
[NoseGear]
SystemType=LANDING_GEAR
Retractable=TRUE
DeployTime=5.0
AnimationID=1
DragArea=0.25//0.10
HideGearNode=FALSE
ModelNodeName=NoseGearStrut
InsideNodeName=
ShockAnimationID=7
ShockStroke=0.256_____________________________________check this value
SpringFactor=0.4--------------------------------------this can cause it to
DampingFactor=0.90
WheelNodeName=FrontTire
RotationAxis=X-AXIS
RollingRadius=0.335
CastoringWheel=TRUE
CastoringNodeName=Front_Steering
CastoringAxis=Z-AXIS
Steerable=TRUE
MaxSteeringSpeed=41.15
Locking=FALSE
MaxSteeringAngle=60.0
InputName=YAW_CONTROL
ControlRate=1.0
HasBrakes=FALSE
RollingCoefficient=0.05
MaxDeploySpeed=99.61
MaxLoadFactor=9.0