This is the ultimate in Human built spacecraft from SG1 and Atlantis. It carries a load of X302 spaceplanes and is capable of intergalactic flight. The X304 is built for homeworld defence and exploration of the cosmos. It is the largest model I have ever built at 28 inches long by 10 inches tall by 15 inches wide. Get one for yourself and help to protect the peacefull humans of the galaxy. Thanks for the heads up everybody! I forgot about the real X303 (The Promithus). Now changed to the X304.