Abstract: A boat is provided with an integral jet power unit encased in a waterproof housing. The hull has a well or compartment open at top and bottom which removably receives the power unit. Retaining elements hold the power unit in place in the compartment. Resilient gasket seals the housing in the well, reduces transmission of vibration and cushions the thrust generated by the jet. The walls of the well are sealed to the bottom of the boat hull so that the hull will not leak when the power unit is removed. The invention may be embodied in various hull constructions including folding and inflatable boats, where handling the hull and power unit separately greatly enhances operation, transport and storage.

Abstract: A boat is provided that has two configurations, a package configuration in which the boat is folded and nested into a compact package for transport and storage and a boat configuration in which the device is assembled into a rigid boat for operative use. The boat is separable into two or more transverse sections. Each section is divided into a port and a starboard portion which hingedly fold together to reduce the package width. The folded sections nest within one another to reduce the package length. The package configuration thereby has a shorter length and width than the boat configuration. Fastening devices are provided for securing the unfolded portions and sections together to provide a solid structure in the boat configuration.