The Northrop Grumman B-2 Spirit requires a two-man crew consisting of a pilot and a commander (co-pilot). They train for an additional six months after their regular pilot training. It is sixty-nine feet long, has a wingspan of one hundred and seventy-two feet, and is seventeen feet tall. Its maximum speed is Mach 0.95 (six hundred and thirty miles per hour) at an altitude of forty thousand feet. It needs refueling after six thousand nautical miles. The Northrop Grumman B-2 Spirit has two internal bays for fifty thousand pounds of ammunition and payload. Internally, it is equipped with a nine-tube color electronic flight instrumentation system (EFIS), which displays flight, engine and sensor data, as well as the status of avionics and weapons systems . The cost of all its sophisticated paraphernalia comes to around $1.157 billion, which is well worth it when trying to go unnoticed during a mission. After all, the crew has no flares, no high burn rate, and no missiles to return fire on. They only have one thing to protect them. Their stealth. It all started when two brothers began designing wings for the new Nazi regime in Germany. With the outbreak of World War II in 1939, the Horton brothers continued their revolutionary work in secret. But while the Germans were developing their wings, an American aircraft designer in his forties, Jack Northrop, was quietly working on his own flying wing design. Jack had dreamed of flying wings since the 1920s and had long believed that the path to success in wing design was to reduce the drag created by the tail and fuselage. In the end, he got rid of the tail completely. But as the war drew to a close, so did the need for a flying-wing aircraft. However, Jack Northrop was convinced that... middle of paper ......those that have military or communication significance are chosen. Throughout Operation Allied Force, B-2s flew 45 sorties, often in weather conditions in which other Allied aircraft could not fly, and produced incredible success rates. The B-2, if anything, had become the most formidable bomber in history. But its role as peacekeeper was about to change with the start of the 21st century, when the B-2 bombers were launched. among the first to lead the fight against terrorism. Beginning on September 11, as part of Operation Enduring Freedom, the stealth bomber was held against Taliban forces in Afghanistan. But it was in 2003, during Operation Iraqi Freedom, that the B-2s were put to the test. They were to attack the most heavily defended targets in the world. Once their mission is complete, they return home to friendly soil, their flight completed..