public void calcPosition() {
		double boatAngleInRadians = 3 * Math.PI / 2 + myBoat.myAngle * Math.PI / 180.;
		myY = myBoat.myY + myRelativeX * Math.sin(Math.PI/2 - boatAngleInRadians)
					     - myRelativeY * Math.cos(Math.PI/2 - boatAngleInRadians);
		myX = myBoat.myX - myRelativeX * Math.cos(Math.PI/2 - boatAngleInRadians)
						 - myRelativeY * Math.sin(Math.PI/2 - boatAngleInRadians);
	}