This is a plugin for the Kerbal Space Program. It provides several modules and parts to store complete vessels that aren't needed to free CPU of their burden.
if I use the Ground Hangar right side up, my rover will fall through the floor of the hangar and the cargo bay when launched. With the Hangar upside down, the hangar's roof acts as a solid floor.
if I use the Ground Hangar right side up, my rover will fall through the floor of the hangar and the cargo bay when launched. With the Hangar upside down, the hangar's roof acts as a solid floor.