HQ-7

HQ-7 / FM-80 / FM-90
HQ-7 / FM-80 / FM-90
	FM-90 of the Bangladesh Air Force
Type	Surface-to-air missile
Place of origin	People's Republic of China
Production history
Designer	Changfeng Electromechanical Technology Design Institute
Specifications
Mass	84.5 kg (186 lb)
Length	3 m (9.8 ft)
Diameter	0.156 m (6.1 in)
Engine	Solid fuel rocket
Operational; range	8 kilometres (5.0 mi) (slant, fast target); 15 kilometres (9.3 mi) (slant, slow target);
Guidance; system	Command-guided version.; Infrared homing;
Launch; platform	Transporter erector launcher; Ship;

The HQ-7 (simplified Chinese: 红旗-7; traditional Chinese: 紅旗-7; pinyin: Hóng Qí-7; lit. 'Red Banner-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 reverse-engineered 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

Original command-guided version.

Naval variant.

Improved version.

Export version of the HQ-7A.

Export version of the HQ-7B.

Naval variant of the FM-90.

FM-90.

HQ-7A, HQ-7B and HHQ-7.

FM-80. Produces a mobile version dubbed Herz-9

FM-90 and FM-90N.

FM-90.

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Medeiros, Evan S.; Cliff, Roger; Crane, Keith; Mulvenon, James C. (2005). A New Direction for China's Defense Industry (PDF). RAND Corporation. ISBN 0-8330-3794-3.
The International Institute for Strategic Studies (2022). The Military Balance 2022. Routledge. ISBN 978-1-032-27900-8.
International Institute for Strategic Studies (2023). Hackett, James (ed.). The Military Balance 2023 (Report). Routledge. ISBN 9781032508955. ISSN 0459-7222.
Chinese Tactics (PDF). Army Techniques Publication. Washington, D.C.: United States Department of the Army. 9 August 2021. 7-100.3.