http://trishulgroup.blogspot.com/20...m-detailed.html

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As the entire Kh-55SM/Korshun smuggling operation (from late 1997 to August 2001) was bankrolled by Iran, Teheran in early 1998 staked its claim for leading the R & D effort aimed at producing the Korshun into a ground/sea-launched LACM with industrial help from China and Pakistan. Iran next established Project 111, under which it clandestinely acquired from Ukraine the technical data packages for fabricating the Korshun’s (now called Ghadr by Iran, Babur/Hatf-7 by Pakistan and the Dong Hai DH-10A by China) solid propellant booster and its propellant; RD95-300 turbofan for cruise flight; the fuselage structure and warhead casings made of 15CDV6 maraging steel, titanium-stabilised steel, HE-15 aluminum alloy and polymers; and ground-based X-band monopulse radars and optronic telemetry tracking systems for LACM test-flights. Pakistan’s NDC subsidiary of NESCOM was contracted to provide computer software related to fluid mechanics, atmospheric flight mechanics, and astrodynamics. While the DH-10A derivative of the Korshun was to have a hybrid GPS/fibre-optic gyro-based inertial navigation system giving it a CEP of 20 metres, Iran and Pakistan opted for an imaging infra-red (IIR) terminal guidance system for which China in 2002 created a consortium of state-owned R & D institutes and companies (called the Xi’an Sicong Group) that included the Shanghai Institute for Optics & Fine Mechanics, China North Opto‑Electro Industries Corporation (OEC), Changchun Institute of Optics & Fine Mechanics, and Luoyang Opto-Electro Technology Development Centre. These entities had earlier obtained vital IIR technology inputs from Russia’s NPO Astrofizika and Ukraine’s TOCHNOST.

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