title: HQ-7
text: The HQ-7 (; NATO reporting name: CH-SA-4) is a short-range surface-to-air missile (SAM) from the People's Republic of China. It was developed by the Changfeng Electromechanical Technology Design Institute from the French R-440 Crotale SAM. It entered service in the early 1980s.
  
  A ground battery consists of a short-range radar and three launchers. Each launcher has four or eight missiles.
  
  Variants
  
  HQ-7A
  Original command-guided version.
  HHQ-7
  Naval variant.
  HQ-7B
  Improved version.
  FM-80
  Export version of the HQ-7A.
  FM-90
  Export version of the HQ-7B.
  FM-90N
  Naval variant of the FM-90.
  
  Operators 
  
   
  FM-90.
   
  Bangladesh Army: FM-90
  Bangladesh Air Force: FM-90
  Bangladesh Navy: FM-90N and HHQ-7.
   
  HQ-7A, HQ-7B and HHQ-7.
   
  FM-80.
   
  FM-90 and FM-90N.
   
  FM-90.
  
  See also 
   Ya Zahra (unlicensed Iranian copy of the system)
   Herz-9 (mobile version of the Ya Zahra system)
  
  References
  
  Sources
  
  Surface-to-air missiles of the People's Republic of China
  Naval surface-to-air missiles
  Military equipment introduced in the 1980s