@Revhx: Yeah, as long as the hatches are closed. It's not a submarine though. It has positive buoyancy so unless you add something to it, fill it with water on purpose, or sling something heavy under it, it won't submerge. Other than briefly if you nosedive into the water with it. I guess if you really want to use it as a flying submarine tank, you could sling a weighted ballast tank under it with pumps that work on remote control to add and remove water, and then drop the tank when you wanted to come up...?

Bear in mind if you do try to keep it under, your main power won't work. There's a gas relief valve protecting the furnace from water intrusion, so it'll fire up again if you resurface, but not any underwater air supply. Your emergency power would work, but it's weak.

@Lodzar no, I explicitly explain in the description, there is no autopilot. Those aren't something I've built up the moxie to play around with yet. In fact, as of the time I post this, the statement that there is no autopilot is literally visible as you read these comments...

is it water proof like if u submerge it under water will it be dry on the inside
?

Is there an autopilot?

Lol thanks!

very nice