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Elements of the Royal Australian Air Force (RAAF) will be conducting Exercise ‘DIAMOND SPEAR 2026’ between 02 - 15 May 2026.
The issue
- Activation of three Temporary Military Operating Areas (TMOAs) in addition to permanent Amberley and Williamtown Special Use Airspace (SUA) off the NSW/South Qld coast.
- Proposed TMOA are a reduction on previously utilised TMOA ‘SHACKLE A’, TMOA ‘SHACKLE B’ and TMOA ‘SHACKLE C’.
- Multiple air routes affected. Diversion routes to be published in the Aeronautical Information Publication Supplement (AIP SUP).
- Access to TMOA is limited to exercise participants, aircraft with a declared emergency, or aircraft undertaking operations in the preservation of life and/or property.
Purpose
The Joint Airspace Control Cell (JACC) requests feedback on proposed TMOAs and procedures for Exercise "DIAMOND SPEAR" 2026.
Proposal
Three TMOAs are proposed to support exercise operations. Indicative timings are listed in Table 1, with specific activation timings to be promulgated by AIP SUP and notice to airmen (NOTAM).
Table 1. Planned activation timings for Exercise Airspace 02 – 15 May 2026
| Airspace | Date | Time |
| TMOA ‘LANCE A’ | 02 – 15 May 2026 | NOTAM |
| TMOA ‘LANCE B’ | 02 – 15 May 2026 | NOTAM |
| TMOA ‘LANCE C’ | 02 – 15 May 2026 | NOTAM |
This airspace proposal has a significant effect on ATS routes to the east of Sydney and Brisbane and offshore areas. Diversion routing will be required during the periods of MILEX airspace activation. Diversion routes shall be developed by Airservices Australia, and shall be published in the AIP SUP.
Access to Exercise Airspace
During NOTAM activation periods, access to Exercise Airspace by non-exercise aircraft will not be available except in cases of a declared emergency, radio failure or participating in activities for the preservation of life and property (SAR, MED, POL or FFR).
YBBB/TMOA ‘LANCE A’ MILITARY FLYING
LATERAL LIMITS: 283347S 1540920E – 293315S 1564344E – 304356S 1560910E – 303825S 1553125E – 294816S 1555922E – 291321S 1550710E – 283347S 1540920E
VERTICAL LIMITS: 5000 – FL600
HOURS OF ACTIVITY: NOTAM
ADMINISTERING AUTHORITY: DEPARTMENT OF DEFENCE
YBBB/TMOA ‘LANCE B’ MILITARY FLYING
LATERAL LIMITS: 303825S 1553125E – 304356S 1560910E – 310821S 1555702E – 310443S 1553803E – 310144S 1551814E – 303825S 1553125E
VERTICAL LIMITS: FL125 – FL600
HOURS OF ACTIVITY: NOTAM
ADMINISTERING AUTHORITY: DEPARTMENT OF DEFENCE
YBBB/TMOA ‘LANCE C’ MILITARY FLYING
LATERAL LIMITS: 310443S 1553803E – 310821S 1555702E – 334622S 1543535E – 334855S 1540250E – 325503S 1543446E – 320101S 1550606E – 310443S 1553803E
VERTICAL LIMITS: SFC – FL600
HOURS OF ACTIVITY: NOTAM
ADMINISTERING AUTHORITY: DEPARTMENT OF DEFENCE
AvSEF members are invited to provide feedback to JACC: adf.airspace@defence.gov.au by 29 Jan 2026.