It's no accident that this plane is in two pieces - that's the way it's built. The plane, a modification of the conventional Strato-Cruiser separates in the middle and can be loaded with complete missile components for transport to Cape Canaveral. Saturn 5 United States A huge plane sitting on a tarmac in two pieces. MS - Two military men walking inside the plane. MCUS - Military personal on the ground pulling the two parts of the plane together. MS - The S-4 stage of the Saturn Space Vehicle is loaded.41 feet-long, 18 feet in diameter and it weighs 20-thousand pounds. MS - The cargo is loaded and now their pulling the plane together. MS - The biggest cargo plane in the skies. on the side of the cargo plane it reads; Aero Spacelines.