A Boeing Next-Generation 737 equipped with the Head-Up Display (HUD) flight deck system allows the airplane to fly when others cannot. Some regulatory standards require a minimum of 600 feet (182 meters) of visibility before an airplane is allowed to takeoff. Airplanes with HUD can takeoff in visibility conditions as low as 300 feet (91 meters). HUD can eliminate flight cancellations, diversions and delays caused by restricted visibility. It also provides an extra margin of safety by allowing a pilot to keep his or her eye "on the road," rather than looking down at the instrument panels. The ability to present data in real-world context makes it easier for pilots to take in information and fly the airplane.