Abstract: An underwater vehicle having a hovering system using a tube type launcher. The underwater vehicle includes a streamlined body and a hovering system connected to a rear of the streamlined body to generate a kinetic force of the streamlined body. The hovering system includes an extension shaft extended to be connected to the rear, a connection assembly connected to the rear through the extension shaft, and an auxiliary propeller assembly connected to the connection assembly.

Abstract: An underwater vehicle having a hovering system using a tube type launcher. The underwater vehicle includes a streamlined body and a hovering system connected to a rear of the streamlined body to generate a kinetic force of the streamlined body. The hovering system includes an extension shaft extended to be connected to the rear, a connection assembly connected to the rear through the extension shaft, and an auxiliary propeller assembly connected to the connection assembly.

Abstract: A socket type module test apparatus can eliminate the problems which are related to the unstable contact between pins and a module in a pin type module test apparatus. At the same time, the socket type module apparatus increases the module test productivity, in comparison with a manual module test using sockets. An embodiment of the present invention comprises a transportation unit for transporting modules; a test unit where the modules are loaded by the transportation unit and tested; and a main control unit for supervising a test procedure by providing test signals to the modules and sorting the module according to test result.