Figured out a way to make the airship hover
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3593088856
https://youtu.be/QHEtPPUSS_U
Did it by hooking up an accumulator to three propellers, mounting them onto the airship.
Then to stop the airship from flying off into the distance, I hooked up another propeller to the generator, this time facing downward.
Afterwhich I spawned in a metronome with default settings, and a lag box set to 0.135 seconds, wired the metronome to the propeller and lagbox, wired the lagbox to the propeller, then welded all the parts together.
To fix the gundrop I just made the front part of the gun weightless.