MWhr corresponds to the emissions per electrical output of a combined cycle gas turbine plant. Work is also being done in developing ceramic parts for gas turbine engines. A compressor map is a chart created for a compressor in a gas turbine engine. The accessory drive is a gearbox that forms part of a gas turbine engine. The United States became interested in gas turbine development around 1905. The speed lines of gas turbine centrifugal compressors typically exhibit choke. It is now part of Siemens, which still operates a gas turbine plant there. Cover Girl is proficient in diesel mechanics & gas turbine technology. The dovetail blade-root connection and the spline coupling of gas turbine aero engines experience fretting. Later that day, Montgomery experienced a failure with one of her gas turbine engines. GT - Gas Turbine unit(s); ST - Steam Turbine unit(s). Turbine blades are subjected to very strenuous environments inside a gas turbine. Most warships used steam propulsion until the advent of the gas turbine. Two further prototypes powered by gas turbine were based on the P4. The Honeywell AGT1500 is a gas turbine engine.