A system operable by a single workman safely launches and recovers an unmanned undersea vehicle (UUV) using a motor-driven carriage to transport the UUV to the water. The UUV is fitted to a reconfigurable sabot. An elevating ramp on the carriage supports the sabot and UUV on an elongate conveyer assembly having inclined rollers aligned with motor-driven belts to selectively outwardly and inwardly displace the UUV between the carriage and the water. Hinge members are used to rotatably connect the elevating ramp to the carriage, and a lifting mechanism connected to the carriage and ramp rotatably displaces the ramp about the hinge members. The rollers and belts displace the UUV on the conveyer assembly. A winch on the elevating ramp has a line connected to the UUV to lower and raise the UUV during launch and recovery operations.