Michael is correct here. If you use a ship with a higher mass, add an armor upgrade, some unmounted Equipment or Cargo to it (will depending on the added mass) it may fly like a brick - also keep it´s direction when turned around so you have to declerate it with it´s forward engines - the engines simply has more to work to change the direction and it is supposed to act this way. The Ships Engines and Thruster power stays the same while you add mass and weight to it, thats the reason why it need…