Abstract: A modular rotatable disc-target for competitive games provides an easily dismantling and easily transportable goal that can be reconfigured to increase or decrease the difficulty of a competitive game. The modular rotatable disc-target for competitive game has a goal frame, a first goal post, a second goal post, a base frame, and a locking mechanism. Players playing the competitive game attempt to propel a disc-shaped projectile through the goal frame to win the game. The goal frame is rotatably supported on opposite ends by the first goal post and the second goal post. The base frame prevents the goal frame from being displaced from the desired position on the playing field. Players can choose between different difficulty levels by using the locking mechanism to lock the rotation angle of the goal frame. This makes it more difficult to propel the disc-shaped throwing object past the goal frame.

Abstract: A system and method for fuel balancing is disclosed. The system and method measures the difference in fuel levels between two fuel tanks. In one case, when the difference in the two fuel levels exceeds a predetermined amount, an indicator is activated. In another case, when the difference in the two fuel levels exceeds a predetermined amount, the fuel is only drawn from the fuel tank containing the most fuel.