MQ-4C Triton and MC-55A Peregrine Achieved Initial Operational Capability

25 September 2026

A Royal Australian Air Force P-8A Poseidon aircraft representing No. 11, No. 12, and No. 292 Squadrons (centre), an MQ-4C Triton from No. 9 Squadron (left), and an MC-55A Peregrine from No. 10 Squadron representing the Air "ISR Family" of jets in No. 92 Wing at RAAF Base Edinburgh, South Australia (photo: Aus DoD)

Major milestones for Australia's air intelligence, surveillance and reconnaissance capabilities

The Albanese Government is delivering a major uplift to Australia’s air intelligence, surveillance and reconnaissance capabilities, with three key Royal Australian Air Force platforms reaching significant milestones within six months.

Together, these milestones represent a significant strengthening of the Australian Defence Force’s (ADF) ability to monitor and understand activity across Australia’s region and respond to emerging threats.

Consistent with the 2026 National Defence Strategy, these investments are delivering a complementary mix of crewed and uncrewed aircraft able to provide persistent surveillance, intelligence collection, maritime patrol and electronic warfare effects across Australia’s primary area of military interest.

A Royal Australian Air Force MQ-4C Triton taxies at RAAF Base Tindal (photo: Aus DoD)

MQ-4C Triton: Initial Operational Capability

The MQ-4C Triton has achieved Initial Operational Capability (IOC), following extensive operational testing and evaluation.

Operating from RAAF Bases Tindal and Edinburgh and supported by Northrop Grumman Australia, the MQ-4C Triton fleet is now providing a powerful new contribution to Australia’s long-range surveillance capability.

With the MQ-4C Triton now at IOC, Air Force has significantly strengthened its ability to deliver persistent intelligence, surveillance and reconnaissance effects across Australia’s primary area of military interest. 

The MQ-4C Triton is based at RAAF Base Tindal and operated by Air Force’s Number 9 Squadron, located at RAAF Base Edinburgh, South Australia.

A Royal Australian Air Force P-8A Poseidon Aircraft (A47-008) at Clark Air Base, Philippines during a Maritime Domain Awareness Activity (photo: Aus DoD)

P-8A Poseidon: Completion of the fleet, arrival of the first enhanced aircraft and commencement of the first domestic modification of the aircraft

The 14th and final P-8A Poseidon aircraft arrived in Australia in May, completing delivery of the P-8A Poseidon fleet and strengthening the ADF’s maritime patrol, anti-submarine warfare and anti-surface warfare capabilities. 

The first of two P-8A Poseidon aircraft upgraded with Increment 3 Block 2 enhancements has also arrived in Australia, providing enhanced operational capability while maintaining interoperability with the United States Navy.

The remaining 12 P-8A Poseidon fleet will undergo these upgrades in Australia, supported by Boeing Defence Australia and local industry partners at the recently opened $200 million Deep Maintenance and Modification Facility at RAAF Base Edinburgh.

This work will build sovereign capacity to maintain and upgrade this critical capability in Australia while creating further opportunities for Australian defence industry.

Australia operates 14 P-8A Poseidon aircraft, based at RAAF Base Edinburgh in South Australia, and operated by Numbers 11, 12 and 292 Squadrons.

The third Royal Australian Air Force MC-55A Peregrine lands for the first time at RAAF Base Edinburgh, South Australia (photo: Aus DoD)

MC-55A Peregrine: Initial Operational Capability and upcoming arrival of the fourth and final aircraft 

The MC-55A Peregrine has achieved IOC, following extensive operational testing and evaluation.

The first three MC-55A Peregrine aircraft have now been delivered, with the fourth and final aircraft due to arrive later this year.

This will further expand Air Force’s ability to deliver integrated intelligence, surveillance, reconnaissance and electronic warfare effects in support of Defence operations.

The MC-55A Peregrine is based at RAAF Base Edinburgh, South Australia and operated by Air Force’s Number 10 Squadron.

These milestones also reinforce South Australia’s growing importance to Australia’s national defence.

RAAF Base Edinburgh is at the centre of Australia’s air intelligence, surveillance and reconnaissance enterprise, supporting advanced Defence capabilities, highly skilled jobs and an increasingly sophisticated sovereign defence industry.

South Australia’s defence industry generated a record $2 billion in economic activity last financial year.

Quotes attributable to the Acting Prime Minister and Minister for Defence, the Hon Richard Marles MP:

“These significant air intelligence, surveillance and reconnaissance milestones demonstrate the Albanese Government’s commitment to our air intelligence, surveillance end reconnaissance.

“South Australia is central to this effort. RAAF Base Edinburgh is becoming one of the most important hubs for advanced Defence capability in the country, supporting our national security and highly skilled Australian jobs.

“The Albanese Government is investing approximately $5.5 billion over the decade to continue to enhance the ADF’s air intelligence, surveillance and reconnaissance and maritime patrol and response capabilities that will create additional opportunities for Australian industry well into the future.”

Quotes attributable to the Chief of Air Force, Air Marshal Stephen Chappell DSC, CSC, OAM:

“Our people have been at the heart of delivering the air intelligence, surveillance and reconnaissance capability for Australia, demonstrating exceptional skill, professionalism and dedication in bringing these complex systems into service.

“I congratulate our whole Air Domain team, from across industry, the public service and Air Force for their exceptional work to deliver these cutting edge capabilities for Australia. 

“The achievements announced today mark a significant step forward in Air Force capability, delivering persistent, long-range maritime surveillance that strengthens our ability to protect Australia’s interests and deliver highly effective air power as part of the integrated, focused force.”

(Aus DoD)