I like to imagine that Applebloom spent some time with a shipwright while she was younger, and that later in her life she applied that to become a naval architect, designing some of the finest airships of the century.
This was one of those just for fun kinda deals, so don't look too hard...it started out as a little picture to experiment with an older AB, and then after she was done I couldn't figure out why the scene didn't look right. And then I realized that she needed more stuff. So stuff was added.
MLP (c) Hasbro
Special thanks to Lauren Faust & the MLP team!