45型駆逐艦に搭載されているWR-21、廃熱再生器が劣化するから使用するの控えているて…
これもうただのガスタービンエンジンじゃないか

http://www.defensenews.com/articles/rolls-royce-claims-progress-on-fix-for-britishs-destroyer-propulsion-system
>Leahy said the recuperator has suffered from a series of issues, although they hadn’t stopped the gas turbines from working.
>“It’s not a case of 'it does work or it doesn’t'; it degrades. When it does,
it gives you operational limitations and ultimately it gets to a point where you have to bypass it.