IKARA
The Ikara asw system is an ingenious method of converting a simple torpedo into a kind of missile with much greater range and infinitely greater speed. The system was devised by Australia, but finally, it became a joint program when the Royal Navy showed great interest. Basically, a torpedo was installed in a rocket-driven structure that was launched and controlled from a launch vessel. This system allows the torpedo reach the area much earlier and fall much closer to the submarine, significantly increasing the possibility of destroying it. The torpedo was released when the launching vessel decided it, according to the data sent by the Ikara during the flight, then, the torpedo falls in parachute to get the best orientation and begin the search for its prey.
IKARA gallery and more info