During a long taxi on a warm day, or as power is reduced in a descent, many pilots notice small changes in how the engine feels. An idle that isn’t quite as smooth, a slight shift in RPM, or a need ...

For the second part, let's dive straight from the first part's question, "Is the ship okay?" down into the ship's engine room. I'll structure it so that by covering C-heavy fuel oil → main engine → au ...