Incredible Facts About the B-2 Spirit 8. The B-2 has a maximum speed of 630 mph – about 140 miles an hour shy of Mach 1. With a takeoff load of 336,500 pounds, that’s impressive! Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
