The Hatf-1 is a single-stage solid-propellant missile with a range of 60 km to 80 km carrying a 500 kg payload, or 350 km with a 100 kg payload. Although the Haft I program was believed to have been halted after three unsuccessful test flights, some of the technology associated with this missile was used in the development of the Haft II program. Some reports claim that a few copies of the missile were produced and are armed with chemical warheads, though Pakistan does not appear to have a chemical weapons capability.
In January 1989 a successful launch of an "indigenous multistage rocket into deep space" was said to have reached an altitude of more than 640 km. This test of the Hatf-1 and Hatf-2 demonstrated components of the longer-range Hatf-3, of which the Hatf-1 is believed to be the second stage. The very short range Hatf-1 does not have the range to reach beyond the Indian Desert, and would almost certainly be deployed with a conventional rather than nuclear warhead.
Reports in 1992 indicate that an improved Hatf 1 with a range of 100 km, known as Hatf 1A, was under development. Although the Hatf-1 program was widely regarded by outside observers as moribund, on 07 February 2000 Pakistan conducted a test of the Hatf-1, which was characterized as "a sequel to several previous tests." This latest test was claimed to represent an improved version of the missile, with a larger payload and an improved range of up to 100 kilometers, versus the 60-80 kilometers initially reported.
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