The most noticeable and revolutionary design feature of Lockheed's C-5 Galaxy is its immense size. Other large aircraft played important roles in aviation history, but none of those giants could haul anything, anywhere, anytime as well as the C-5. Today, the C-5 continues to combine greatness with unromantic achievement.
The C-5 was the biggest and heaviest airplane in its class when test pilots thundered aloft for the first time on 30 June 1968. Today, the upgraded C-5M Super Galaxy continues to be the largest aircraft in the U.S. Air Force inventory.
Whether it's supporting humanitarian relief efforts or supplying warfighters across the globe, the C-5 can carry almost every item in the U.S. military inventory, over greater distances, and more reliably and efficiently than any other strategic airlifter.
In October 1974, the museum's C-5 became the first and only aircraft in history to launch an intercontinental ballistic (ICBM) in flight.