A class of airships that designed to collect, store, and even transport rain water from the clouds.

When it moves, it uses two heavy rocket boosters to maneuver itself, which run on ion powers. This means the airship moves in relatively low speed.

When it reaches mission location, onboard personnel will first contact Solar Dome and stop the “solar death ray” remotely before they can open up the hatch. At the same time, the airship will decrease the buoyancy on the front end of its float tanks by taking out the helium and pump them into the water tanks and rear end of the float tanks.

This makes Stratoreservoir flip 90 degrees and points the water condenser heads directly in the cumulonimbus cloud formation, and begin the water extraction process. The sensors cranes will also unfold during this process to give the control room all the data they need to know what they are actually doing.

Similar technology can be found in the FLIP ship

However, Stratoreservoirs is extremely vulnerable to the Exile attacks. Because of their huge size and long-duration work times, they are the biggest and most vulnerable target, and carrying the most valuable resource possible in the world.