The spaceship schematics show the structure of the spaceship. The spacecraft structure comprises the front and back instrument plates (reinforced carbon fiber construction) connected by six cylindrical supports. Each of the instrument plates is attached to the instrument units mounted between. As a result, the satellite's rigid core compartment can be built. This Spaceship Schematics also depicts the three distinct parts of a spaceship. The Space Shuttle comprises three major components: the Orbiter, which houses the crew; a large External Tank, which stores fuel for the main engines; and two Solid Rocket Boosters, which provide the majority of the lift during the first two minutes of flight.