Mothership
The Mothership is the biggest known Predator ship. The Predators have used them for over several millennia. Smaller Predator ships like the classic ship or scout ship can dock with the mothership. The mothership can also release drop pods directly containing one Predator each. It has advanced cloaking capabilities and packs a lot of firepower. You see it destroying a Colonial Marine vessel in the opening of Aliens vs. Predator 2010 PC game. It also appears in the Alien vs. Predator movies.