The Lockheed C-5 Galaxy is primarily a giant cargo plane – and to load it up, you need a giant opening. The solution: the nose cone of the plane, known as the visor, swings up to reveal a massive door. 🎥Inside Mighty Machines | Smithsonian Channel Aviation Nation

Breaking barriers and pushing the bounds of the possible is in our DNA. This National Aviation Day, we celebrate our history and look to the future, as we define the next 100 years of flight. More here: https://lmt.co/3g9pJRO | Lockheed Martin