Type 91 Portable Surface to Air Missile

Type 91 surface-to-air missile is a Japanese man-portable surface-to-air missile. Its appearance is similar to the US-made FIM-92 Stinger anti-aircraft missile.

In the ranks of the JSDF, the Type 91 is known as Hand Arrow.

The Type 91 missile is similar to the Stinger missile it replaced, with two rocket solid motors, an initial booster motor and a sustainer. The seeker however is an advanced imaging seeker operating in both the visual and infra-red frequency ranges: 0.4 to 0.7 µm and 3.5 to 5.2 µm respectively. On launch, the missile records the target's image profile and is able to ignore defensive countermeasures such as flares.

Improvements of the Type 91 Kai included missile with image-infra-red seeker, smokeless motor and the capability to have faster shooting and target acquisition and was also improved for the ability to be used at night.

Type 91
Type	Manportable surface-to-air missile
Place of origin	Japan
Service history
In service	1994–Present
Used by	Japan
Production history
Designer	Toshiba Heavy Industries
Designed	1990
Manufacturer	Toshiba Heavy Industries
Unit cost	$ 145,000 (As of 2006)
Produced	1991–1993 (Original) 2007–Present (Type 91 Kai)
Specifications (Type 91 Kin-SAM)
Weight	11.5 kg
Length	1.43 m
Diameter	80 mm
Crew	1
Engine	Solid Rocket Motor Mach 1.9
Guidance system	Infrared homing