Here is my attempt to create a realistic vectored thrust 3d L-39. Ever see the hovering jets on Youtube? Gyros for vectoring and working brakes on Dual rates.
** Notes: No way to vector thrust correctly from an engine in the middle of the fuselage so I put ballast where the original engine was + half a lb for the vectoring hardware/servos... then added a zero weight thruster pod at the back running at the original turbine specs.
Enjoy !!