Combined gas and gas

Two-turbine, one-shaft marine propulsion

Combined gas turbine and gas turbine (COGAG) is a type of propulsion system for ships using two gas turbines connected to a single propeller shaft. A gearbox and clutches allow either of the turbines to drive the shaft or both of them combined. Marine usage of COGAG systems are similar to those found ashore.

This keyword could refer to multiple things. Here are some suggestions: