Among the few capability revelations in Australia’s 2026 National Defence Strategy and Integrated Investment Program, unveiled in April, was the planned withdrawal of the Royal Australian Air Force’s (RAAF) C-27J Spartan light transport aircraft.
Operated by No. 35 Squadron from RAAF Base Amberley, the fleet of ten C-27Js has been in service for little more than a decade.
The withdrawal decision, however, was not unexpected, given longstanding questions over the aircraft’s capability deficiencies, operating and sustainment costs, and lower-than-desired availability rates. The latter plagued the fleet during its early years in service, although these have since improved.
Acquired under Project Air 8000 Phase 2 to fulfil a battlefield airlift requirement, deliveries of the ten aircraft were made between June 2015 and April 2018.
While an initial operating capability for the C-27J was declared in late 2016, its final operational capability was never achieved.
Issues highlighted in numerous Australian National Audit Office (ANAO) reports on the C-27J over the years include the aforementioned availability and sustainment challenges, as well as the fact that its missile approach warning system was never fully integrated, reportedly due to technical difficulties.
While the baseline C-27J is an Italian design from Leonardo, the ANAO reports attribute many of the issues to Australia’s acquisition of the C-27J under the US Joint Combat Aircraft (JCA) configuration via the Foreign Military Sales process.
Following the US cancellation of the JCA programme, and the US Air Force’s decision to divest its C-27J fleet in early 2013, Australia became an “orphan” operator of the type. It therefore took on responsibility for maturing many of the platform’s advanced mission systems crucial for its battlefield airlift role.
Due to these difficulties, around the turn of the decade the battlefield airlift role of the C-27J was dropped. It instead took on a light transport role, focused on humanitarian aid and disaster relief, as well as supporting regional engagement tasks with Pacific nations, including aerial surveillance and fisheries monitoring.
Reflecting the changing security environment in the Pacific, and the limitations of the C-27J, RAAF chief Air Marshal Stephen Chappell told ABC in an interview on 21 May: “Our circumstances have changed drastically since the decision to acquire the C-27J early last decade, and that’s why we’re replacing the C-27J with other options to achieve the effects in the Pacific.”
While no retirement timeline has been announced, the National Defence Strategy and Integrated Investment Program indicated the C-27J would be replaced by a “commercial aircraft fleet to support personnel and logistics transport across the Pacific”.
Options include jet airliners like the Airbus A320 or Boeing 737, with the latter already serving in the special-purpose aircraft fleet for VIP transport. These aircraft would offer greater capacity and longer-range transport than the C-27J, but would be dependent on established aerodrome infrastructure.
Alternatively, turboprop options such as the ATR or Bombardier Dash 8 families would provide access to a wider range of airfields and shorter runways across Pacific islands.
It also remains to be seen whether commercial aircraft would be civilian-contracted and crewed, or leased and operated by RAAF personnel.
by Roy Choo
