Iran’s Islamic Revolution Guards Corps (IRGC) appears to have provided an explanation for the substantial improvement in the range of its Fateh-110 family of tactical ballistic missiles when it displayed the latest variant, the Zolfaghar, at Tehran’s Amirkabir University of Technology.
Close-up photographs of the displayed missile that were published by the Fars news agency on 16 December showed that much of its body had a ribbed texture, indicating it was made using filament-wound fibre to make it lighter than models constructed from metal.
When the Zolfaghar was unveiled in September 2016 it was claimed to have a range of 700 km, a significant improvement on the 500 km range attributed to the Fateh-313 that was unveiled two years earlier. The third-generation Fateh-110 unveiled in August 2015 supposedly has a range of 500 km.
Source » defence