Hi,
 
	I'm performing a JATO (or SPRD) assisted takeoff, and everything goes well (the rockets fire when expected and the takeoff goes well) but then when I want to drop the rockets, flipping the countermeasure cap and pressing the button, the aircraft is tumbling in a spectacular way and the screen goes black in the pilot view because of the G forces.
 
	I attached a track so you can see what happens.
 
	Can you help ?
 
MiG-21bis JATO.trk