I usually don't write reviews, but I felt compelled to write one about this out of principle.
Kuutei Dragons is a not very well disguised fantasy / glamorization of whaling ships, with "dragons" (these dragons have, uh, tentacles?) as fantasy whales that the crew of an airship hunts and butchers for meat and oil (ie. cooking and lamp fuel, etc – again, this manga isn't exactly subtle). Given that Japan is one of the few nations that still practices illegal whaling (and dolphin hunting), I found this pretty distasteful.
The art is pretty good. The story and characters aren't really anything to write home about. You could
compare this to dungeon meshi as they're both fantasy manga about (more or less) cooking, but that would be a bit of an insult to dungeon meshi, as they're not really alike at anything more than a surface level.
Personally, I got negative enjoyment out of reading this, and have blacklisted both the author and the guy who recommended this to me. I'd be a bit more open minded about this if japan wasn't still actively whaling (typically under the defense of "scientific" research), and home to people who apparently think this is still okay. The crew of these ships still hunt whales (sorry, dragons) because they are "delicious", despite the fact that few people still do this anymore and this is considered a bit old fashioned (or, you know, illegal, and considered an unethical, barbaric practice in most of the world). Most of the manga is focused on different ways to cook dragons, and the MC's sole defining character trait seems to be that he wants to kill and eat dragons. Overall, this seemed a bit on the nose, and seemed uncomfortably close to pro-japanese-whaling propaganda considering the audience.
Read if you'd be interested in reading a manga about the crew of a fantasy whaling airship, and aren't bothered by the ethical considerations of that.