It is believed that Iraq was developing longer-ranged versions of the Al
Samoud by clustering multiple engines and adding third stages. For
example the Al Samoud 2 is an upgraded model of the Al Samoud 1. The Al
Samoud 2 had only one liquid propellant stage and a wider diameter than
its predecessor to accommodate more fuel. The Al Samoud 2 was 6.1 m in
length, had a diameter of 0.76 m, and a launch weight of 1,700 kg. It is
believed that the missile could carry a 300 kg payload and deliver it
200 km to its target. ¹