OVERVIEW:  The SA-11 GADFLY (9K37 Buk-M1) Platoon is a mobile, low-to-high altitude, medium range surface-to-air air defense unit.

DETAILS: The SA-11 GADFLY was primarily intended to protect front line-armor and mechanized divisions against aircraft, Helicopters, and cruise missiles. 

The 9K37 SA-11 GADFLY utilizes the 9S18 "Tube Arm" or 9S18M1 (NATO name "Snow Drift") target acquisition radar in combination with the 9S35 or 9S35M1 "Fire Dome" H/I band tracking and engagement radar mounted on each TELAR. The Snow Drift target acquisition radar has a maximum detection range of 85 km and can detect an aircraft flying at 100 m from 35 km away and even lower flying targets at ranges of around 10–20 km . The Snow Drift is mounted on a chassis similar to that of the TELAR, as is the command vehicle. The control post which coordinates communications between the surveillance radar(s) and the launchers can communicate with up to six TELs at once. The launcher can guide up to two missiles per target.  


Specifications:

Maximum Acquisition Range: 	 76 nm (140 km)
Maximum Tracking Range:		 46 nm (85 km)(fighter-sized target)(est)
Engagement Envelope, range:	 1.6-18.9 nm (3-35 km)(aircraft); 1.6-13.5 nm ACLM  
Engagement Envelope, altitude:	 50-72,179 ft (15-22,000 m) 
Max target speed: 		 1613 knts (830 m/s)
Kill probability:		 0.70-0.85 (single shot v. aircraft); 0.4 v. ACLM
Reload time:			 12 minutes 
Reaction Time			 15-18 seconds
Mobility:			 mobile
Set Up Time:			 5 minutes

NOTES:  IOC 1983
  

SOURCES: Buk Air Defense Missile System | Military-Today.com." MILITARY TODAY - Everything About Modern Warfare. Accessed August 6, 2019. http://www.military-today.com/missiles/buk.htm ; "Buk Missile System." Military Wiki. Accessed August 6, 2019. https://military.wikia.org/wiki/Buk_missile_system ; 
Dr Carlo Kopp, PEng. "9K37/9K37M1/9K317 Buk M1/M2 / SA-11/17 Gadfly/Grizzly" Air Power Australia. Accessed August 6, 2019. https://www.ausairpower.net/APA-9K37-Buk.html ; "Missile Profile: 9K37 Buk." Defence & Security Intelligence & Analysis | Jane's 360. Last modified July 21, 2014. https://www.janes.com/article/40907/missile-profile-9k37-buk ; 
Administrator. "9K37 BUK-M1 SA-11 Gadfly Medium Range Air Defense Missile System | Russia Russian Missile System Vehicle UK | Russia Russian Army Military Equipment Vehicles UK." Defense News Security Global Military Army Equipment Technology Industry - Army Recognition. Last modified December 25, 2019. https://www.armyrecognition.com/russia_russian_missile_system_vehicle_uk/9k37_buk-m1_sa-11_gadfly_technical_data_sheet_specifications_information_description_pictures_photos.html;  US Army, Worldwide Equipment Guide Volume 2: Airspace and Air Defense Systems, "RUSSIAN SAM SYSTEM SA-11/GADFLY" (2016)