40% efficiency at this power level is very respectable and is just another sign that gas turbine problem is stopping being a problem.
I want to ask something. Is it really for ships? The fuel is listed as natural gas and its airflow is 24% higher despite less than half the RPM compared to the new LM2500. That would mean a big turbine. Looks like an engine designed for long lifespan and reliability rather than power density.
This turbine is for power generation. I originally posted this in the Engine Development thread, and it was subsequently moved here by a mod. Neither thread is entirely appropriate, but here is better.