The B-1B is powered by 4 General Electric F-101-GE-102 turbofan engines with afterburners, which deliver 30,000 pounds of thrust each. It is 146 feet long, 34 feet high, and has a 79-137 foot wingspan. It weighs about 190,000 pounds empty, and its maximum takeoff weight is 477,000 pounds. The Lancer can reach +900 mph, and has an intercontinental range unrefueled. The bomber's ceiling is +30,000 feet. The B-1B carries a crew of 4: aircraft commander, pilot, and an offensive and defensive systems officer. It is armed with up to 84 Mark 82 conventional 500-pound bombs, 30 CBU-87/89/97's, and can be reconfigured to carry a wide variety of nuclear weapons. A single bomber costs +$200 million