The original Soviet-era missiles performed poorly in accuracy tests, but Iraqi modifications made them far worse.

Nodong-1 is a single-stage, liquid-fueled missile, which employs a unique combination of unsymmetrical dimethylhydrazine (UDMH) and AK-27 (nitric acid with nitrogen oxides) for propulsion. What ...

The optional third stage uses two YF-50D engines burning nitrogen tetroxide and unsymmetrical dimethylhydrazine for up to 1,105 seconds (18 minutes 25 seconds) of powered flight. The Chang Zheng 5 ...