If you like those you might also like the star ship Enterprise idling, for 24hrs... for a more futuristic spin (haha!) on things.

https://www.youtube.com/watch?v=ZPoqNeR3_UA

That's awesome. http://mynoise.net has similar ambient sounds, they have a section on "Transports" that contains (just a few); Spaceship, Railroads, Sailboat, Aircraft cabin, Flying Fortress.. etc

It's awesome when I'm writing short stories, they've also got stuff like; RPG Dark Forest, Dungeon, Battlefield that helps me get in the mood if I'm writing a fantasy story.

IIRC it's a sound engineers hobby side project. I've got nothing to do with the project, just been a happy user for years.

Brilliant site, thanks for the recommendation.