This pilot needed a whole team of nutritionists, doctors, scientists and engineers to help him fly the world’s most sustainable airplane, which can stay in the air indefinitely. Bertrand Piccard, one of the two pilots who will be flying the Solar Impulse around the world in 2015 without using any fuel, just finished a 72-hour simulation that mimicked what the flight across the Atlantic Ocean would be like. The plane only flies at 40 miles-per-hour, so making it across the ocean requires some serious endurance. Check out the video of the training!