41. Multi-stage rockets are capable of attaining escape velocity from Earth and therefore can achieve unlimited maximum altitude. 42. The GX design uses a two-stage rocket . 43. Development of the first-stage rocket engine for the Navaho began with two refurbished V-2 engines in 1947. 44. The interceptor is a two-stage rocket that carries as much as 42, 500 pounds of solid propellant. 45. Last August, it launched a three-stage rocket that flew over Japan and landed in the Pacific Ocean. 46. Last August, North Korea launched a three-stage rocket that flew over Japan and landed in the Pacific Ocean. 47. It was the United States first two-stage rocket and formed an integral part of their strategic deterrent force. 48. Multi-stage rockets are much more complicated. 49. Hunter was a proponent of single-stage rocket ships and laser battle stations in space to defend satellites if necessary. 50. TV-1 was a two-stage rocket .
