An XS hangar generally refers to what the community calls "small" ships. The non-exhaustive list of ships includes:Avenger, Eclipse, Gladius, Sabre, Arrow, Gladiator, Hawk, Hornet, Hurricane, Terrapin, Defender, Mustang, Buccaneer, Herald, Prospector, 100 Series, 300 Series, Aurora, Blade Ships such as the Vanguard, Cutlass, Freelancer, Reliant, and Khartu-al are too big as they are the next size up.