The goal of this mod is to add flight to Subnautica and provide reasons to use it.  Version 1.0 includes a few basic Seamoth upgrade modules crafted at the Vehicle Upgrade Station.

• Life Support - Refills hunger, water, and health while on board
• Anti-Grav Engine - allows Seamoth to be flown above water. Controls will respond the same as piloting under the sea.
• Maneuvering Jets - Allows Seamoth to rotate using the Q and R keys by default (not currently configurable). Maneuvering Jets will also disable the auto-roll correction that the game does by default.
• Beckon Call - Any Seamoth with this upgrade can be summoned to your location by using the equivalent item constructed in the Player Tools section of the Fabricator. If you have multiple Seamoths in the world only those with the upgrade module will be summoned and each will arrive several meters above the previous one.  After using the Beckon Call tool it will take approximately 10 seconds for them to reach your location.  Take care with where you summon to prevent them from ending up in unreachable locations (or just summon them again).  Any Seamoth that is currently docked in a Cyclops or Moonpool will not be summoned.
  

With version 1.1 the Cyclops has been given a potential Anti-Gravity upgrade as well.  Built in the Cyclops upgrade fabricator, installing this upgrade will allow your favorite mobile base to escape the oceans and enter into the skies.  And yes, it can carry your Seamoth or Prawn along with it inside the docking bay.   The Cyclops will also maintain it's flying position if you leave it and can be used as a stationary airbase if you so desire.  Just be aware that if you should leave it hovering out of reach, you'll need to find someway to get back up in order to retrieve it.Releases adding more fun things to do are planned for the near future.

Thanks to Ceskil for providing several of the images used for crafting items.

Module id's (for console spawning):
Beckon Call tool: BeckonCall
Beckon call seamoth module: SeamothBeckonCallModule
CyclopsFlightModule
SeamothFlightModule
SeamothLifeSupportModule
SeamothManeuveringJetsModule


Planned Updates

Airship Update (Complete - v1.1)

Wargear Update:
Add some combat and defense upgrades TBD. 

Battlefield Update:
Add some flying doodads so you have something to practice shooting at.

Misc:
Model and sprite improvements for all portions of the mod. Likely dependent on if anyone volunteers me models since I'm incompetent at it.



Source: https://bitbucket.org/glibfire/subnauticamods/src/master/RedBaron/