Abstract: A wheeled exercise apparatus may include a single wheel, a central axle, a contoured body, a pair of handles, a pair of paddles and a clamping mechanism or torsion spring. A single wheel may have an interior cavity in the center with an opening on both sides of the wheel. A central axle may be housed inside of the interior cavity of the wheel. The contoured body may be connected to the central axle protruding from the sides of the wheel. The contoured body may further include two storage areas where may house and secure a pair of knee pads. The pair of handles may be connected to the contoured body's left and right sides. The pair of paddles may be attached on either side of the central axle. Each of the paddle may slide over the central axle and fastens through a clamping mechanism or a torsion spring.

Abstract: An air ventilation apparatus for a flight helmet having a member secured to the helmet and having portion spaced from the helmet to form a plenum chamber and exit nozzle. The exit nozzle is positioned to provide an air flow between the face of the user and the helmet visor. An air inlet is provided on the member, secured to the helmet, for supplying air to the plenum chamber. Spacers are provided between the helmet face mask assembly and the helmet to fit the visor assembly to the helmet when the plenum chamber is attached to the helmet.