Abstract: A missile arrangement including a self-propelled carrier missile unit and one or more releasably held secondary units releasable from their held condition, the self-propelled missile unit having a fluid discharge orifice and a pressurizable substantially fluid-tight fluid-pressure-responsively movable retention and release wall, which enables retention and release of the separable unit by respectively fluid-pressurizing and depressurizing the self-propelled unit. The wall is resiliently urged toward a release position. Several embodiments of a preferred fluid-sealed fluid-pressure-responsively movable retention and release wall, in the form of a flexible diaphragm retention and release wall, are illustrated.

Abstract: A fluid discharge reaction-propelled toy missile arrangement capable of formation in multiple stages or units releasably interconnected as a function of internal propulsive pressure in the succeeding stages or units, or capable of individual unit single stage use, if desired. A self-sealing lateral inlet valve separate and spaced from the fluid discharge propulsion orifice of an individual missile unit enables individual unit pressurization from an external fluid pressure source. Missiles are launched from a ground-launching unit which may have a fluid pressurizing inlet and a fluid pressurizable releasable missile-holding connection, or may have other releasable missile-holding connection, and launch simulation enhancement can be provided, if desired, by controlled-release lateral liquid spray from one or more discharge orifices in the launching unit and separate from the fluid pressurizing inlet therefor.