
By Clara Connolly
Syria Solidarity UK is devastated to hear of the death this week, at his home in Istanbul, of James Le Mesurier.
“The challenge in operating in Syria’s crowded airspace is clear from a glance at a large video screen inside the center that tracks aircraft across the region. Russian and Syrian planes are marked with yellow and orange icons; American and allied planes are delineated in green while civilian aircraft are blue.”
According to Justin Bronk, Research Fellow, Airpower and Technology at the Royal United Services Institute, NATO AWACS aircraft and other Coalition aircraft “will track and share the locations of Russian and Syrian aircraft from the time that they take off to the time they land.”
NATO’s AWACS inventory includes Royal Air Force E-3Ds, US Air Force E-3Gs, French Air Force E-3Fs and the NATO pooled E-3A fleet. These are the cornerstone of the Coalition’s airspace surveillance and management over Syria, including deconfliction with Russian and Syrian aircraft, Justin Bronk explained to Syria Notes.
Coalition aircraft typically broadcast a radio transponder signal which can be picked up by any radar controller, including by those in Damascus, and by the E-3 AWACS. Also, Coalition aircraft will be on Link 16, an airborne datalink network which allows all aircraft on the link—from fighters, tankers, surveillance aircraft to AWACS themselves—to share sensor data to build collective situational awareness. This means that all Coalition aircraft are typically well aware of allied aircraft and what those can see, with the AWACS fleets providing overall coordination as well as contributing a lot of situational awareness from their on-board wide-area surveillance radar.
For deconfliction and tracking of Russian and Syrian aircraft, which typically do not broadcast a transponder signal, more traditional tracking and radio communications are used. AWACS and fighter assets where available will track and share the locations of Russian and Syrian aircraft from the time they take off to the time they land. If there is a need to deconflict for flight safety, the AWACS crew will typically contact these aircraft via the internationally recognised ‘guard’ frequency—243.0 MHz for military operations—to advise or warn them.
To positively identify these non-transponder broadcasting aircraft, many Coalition assets such as AWACS aircraft and the US Air Force’s F-15 and F-22 fighters can use techniques such as Non-Cooperative Threat Recognition (NTCR) which involves using onboard radar to focus on and classify unknown aircraft by identifying distinctive features like engine fan blade size and engine spacing.
See what Assad and Putin are doing with civilians
— FARED (@FARED60350386) May 1, 2019
How to destroy residential neighborhoods
Killing children, women and innocent civilians
The world is watching it
This video from the city of Kafr Nabouda in the northern Hama countryside after being targeted by Syrian helicopters pic.twitter.com/8RoiGII254
Monitoring the situation in Idlib with grave concern as regime and Russian strikes reportedly kill over 50 civilians in 2 weeks. Reported targetting of hospitals, schools and homes, and use of barrel bombs for the first time in 7 months, is horrifying and must stop. #EyesonIdlib
— Martin Longden (@UKSyriaRep) May 3, 2019
Separation of military-age men from women and children in Assad's "IDP shelters" upon forced evacuation of #Rukban camp, the UN's indifference and thundering silence of those mandated w protecting interests of displaced Syrians have so many disturbing parallels with #Srebrenica https://t.co/gRG5wf1dFj
— Refik Hodzic (@ledenik1) April 13, 2019