GRIM-83 Fulgora

The GRIM-83 Fulgora is a lightweight, that fires a surface to air missile, using Infrared,  Infrared/Ultraviolet, or data link information for guidance depending upon the variant being used. The GRIM-83 is capable of defeating fixed wing and rotary-wing aircraft, as well as smaller targets such as drones. The GRIM-83 can be configured to operate from a number of different launch platforms, from the standards launcher, to use on helicopters, and a variety of different ground vehicles. The standard GRIM-83 uses a 3 kg annular blast fragmentation warhead with an impact fuze and a self-destruct timer, later variants allow for the use of a proximity fuze and self-destruct timer.

The launcher itself is fitted with an antenna to reduce likelihood of accidental downing of civilian or friendly aircraft powered by a rechargeable battery that is stored within the launcher itself, and weighs 15.19kg (34lbs) with a targeting range of up to 4,800 m  with the ability to engage low altitude threats at altitudes up to 3,950 meters.

Variants

 * GRIM-83.A: Basic model GRIM-83


 * GRIM-83.B: Upgraded computer components to increase resistance to interference, IR sensor replaced with IR/UV seeker to provide higher effectiveness against countermeasures


 * GRIM-83.C: Upgraded missile software and further improvements to computer processing components, allowed system to be updated, in the field to respond to different types of interference and jamming.


 * GRIM-83.D: Further upgrades to missile seeker head, improving effectiveness against countermeasures and increased detection range, air frame changes to missile allowing for faster missile travel speed and improved range


 * GRIM-83.E: Upgraded computer components and software, improved detection systems to increase effectiveness against smaller targets such as drones


 * GRIM-83.F: Upgraded computer components and software, added data link to assist in missile guidance or allow for use of data link only for missile guidance, option of replacing standard warhead with a proximity fuze warhead to further enhance effectiveness against targets such as drones, improved motor, further improvements to air frame for significant increase in range

Arbenz Revolution
The GRIM-83 was used extensively in the Arbenz Revolution.