COGAGCombined Gas and Gas
COGAGGas Turbine & Gas Turbine
References in periodicals archive ?
Alternatively, as in the Arleigh Burke (DDG 51) class the same GE LM 2500s are used for both functions in Cogag (Combined Gas turbine And Gas turbine) layouts incorporating four gas turbines.
While the first of the Norwegian Skjold class has two R-R Allison 571-K gas turbines individually rated at 3 MW and two MTU 183 diesels, the five subsequent production vessels will have a Cogag system featuring Pratt & Whitney gas turbines: two ST18M and two ST40M with Renk BUS 86/75 transmission system to both water jets.