111 Squadron, Republic of Singapore Air Force

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RSAF 111 Squadron
111Sqn shoulder patch.jpg
RoleAirborne Early Warning and Control
Garrison/HQTengah Air Base
Motto(s)"Vigilance In Control"
EquipmentFour G550/IAI Phalcon CAEW
Represented by the head of a Jaeger, a vigilant and courageous hawk-like bird.

The 111 Squadron "Jaeger" was formed when the Republic of Singapore Air Force acquired four Grumman E-2C Hawkeye Airborne Early Warning aircraft in 1987.[1] Based at Tengah Air Base, its primary function is to perform airborne surveillance and early warning. Other functions include Aircraft Intercept Control, Surface Surveillance, Search and Rescue and Air Traffic Control.

The unit is represented by the Jaeger, a vigilant and courageous hawk-like bird whose vigilance is aptly reflected in their motto "Vigilance In Control".


Since the early 1990s, as one of the signatory members of Five Power Defence Arrangements (FPDA), Singapore has regularly deployed the squadron's Hawkeye to participate in the air exercise part of the Integrated Air Defence System (IADS) phase.


In 2001, RSAF working together with the Defence Science and Technology Agency (DSTA) upgraded the entire computer and software systems of the E-2C. State-of-the-art equipment was adapted to the harsh military environment and millions of codes were rewritten. Interfaces between the various E-2C subsystems were also designed and enhanced.

The RSAF acquired four Gulfstream G550 jets with the IAI EL/W-2085 Active Electronically Scanned Array (AESA) dual-band phased array radar (a newer derivative of the Phalcon system) for CAEW duties from Israel Aerospace Industries (IAI) in 2007,[2] at least 2 aircraft were delivered in late 2008 and are expected to be fully operational by 2010.[3] Not included in the deal is an additional G550 as an AEW trainer, which will be acquired and maintained by ST Aerospace on behalf of RSAF.[4]

During the 2010 Singapore Airshow, the squadron unveiled the new aircraft, which had been further upgraded, at the display pavilion.[5]

Aircraft operated[edit]

  1. 4× E-2C Hawkeyes (USN BuNos 162793/162796, RSAF serials 011/012/014/015,[1] 1987–2010s)
  2. 4× G550 CAEW (2008–present)


  1. ^ a b Joe, Baugher (31 July 2010). "US Navy and US Marine Corps BuNos Third Series (160007 to 163049)". JoeBaugher.Com. Retrieved 17 August 2010.
  2. ^ "Singapore confirms new AEW purchase". Flight International. Archived from the original on 5 September 2008. Retrieved 8 September 2008.
  3. ^ "Singapore to Replace Hawkeye With G550 AEW". www.defense-update.com. Archived from the original on 5 September 2008. Retrieved 8 September 2008.
  4. ^ Craig Hoyle (16 September 2008). "Singapore to get additional G550 as AEW trainer". FlightGlobal.com. Retrieved 28 June 2011.
  5. ^ "Singapore Unveils Upgraded G550 Platform". Airforce-Technology.Com. 2 February 2010. Retrieved 2 May 2010.[unreliable source?]

External links[edit]

Video links