Though the museum did not receive one of the four remaining Shuttles, it did receive the Full Fuselage Trainer (FFT), a Shuttle mockup that was used to train all Space Shuttle astronauts. Because it is a trainer and not an actual Shuttle, small group (no more than six persons, minimum age 10, maximum height 6' 4") guided tours of the interior are available, for an extra charge. The FFT began arriving in various pieces beginning in 2012. The cockpit and two sections of the payload bay arrived via NASA's Super Guppy.