Abstract: A cylinder is closed to form a sealed container for gases and the like. The cylinder is closed by means of a pair of specially constructed end caps each having annular recesses formed around their circumference. The ends of the cylinders are engaged within the recess and joined by magnetic pulse forming. The magnetic pulse foxing force is asserted radially inward against a mandrel which mates with a depression formed in the caps so that the assembled cylinder and cap are squeezed into sealed relation.

Abstract: An ejected pilot's seat is provided with a drogue chute anchored to the seat by means of a bridle. The bridle includes a strap having redundant load cells parallel connected in redundant fashion. The load cells measure tension in the strap. Data from the load cell is conducted through the bridle to a microprocessor contained within the seat. The microprocessor includes look-up tables for correlating tensile load in the strap to forward velocity of the ejected pilot. Upon acquisition of a preselected optimum velocity, the drogue chute is released and a main chute is deployed to increase the likelihood of a safe descent to the ground.

Abstract: A valving system and modified anti-G flight suit are disclosed which operate in either of two modes. In an anti-blackout mode, pneumatic bladders in the flight suit are simultaneously inflated. In an anti-fatigue mode, the bladders are sequentially inflated in a repeated cycle so as to prevent pooling of blood and other body fluids in the leg and lower seat area.