Cost Performance

The project is working within the approved budget. Note: the project incurred a real cost increase to establish the MOU for the procurement of the torpedoes (as detailed at Section 2.1).

Schedule Performance

The HWT project consists of two separate components to deliver the full HWT capability to the RAN. The first component is the modification of each submarine to accommodate and launch the HWT; the second component is the spiral development of the HWT software.

Boat installations are consistent with the approved Materiel Acquisition Agreement (MAA) schedule; however, each installation is dependent on the Full Cycle Docking (FCD) program, consequently completion dates vary according to boat availability. The HWT schedule has also been impacted by emergent work, not related to HWT, during each submarine docking. As a result of these non project related delays, completion of the submarine modification program has slipped from 2010 to 2016.

Development of the HWT software is progressing to schedule and the Spiral 1 software baseline has achieved Operational Release (OR). The next software baseline to be implemented by the RAN will be Advanced Processor Build (APB) 4 and that development is progressing to schedule.

The Torpedo deliveries from the US have been slower than planned but have had no operational impact on the RAN.

Materiel Capability Performance

The replacement HWT with Spiral 1 software and the integration modifications to Collins Class Submarines were approved for OR by the Chief of Navy (CN) on 10 March 2010.

The replacement HWT with APB 4 software was approved for Initial Operational Release (IOR) by CN on 8 March 2011.

Operational Release is the milestone which represents the In-Service date at which CN is satisfied that the equipment is in all respects ready for operational service.

Platform modifications have been completed in HMA Submarines WALLER, FARNCOMB and DECHAINEUX and are progressing in concert with the FCD for SHEEAN. Platform modifications in HMA Submarines COLLINS and RANKIN will be completed in conjunction with the FCD program. As first of class specific testing was carried out for WALLER, all subsequent testing for platform modifications will be undertaken in conjunction with standard post docking testing.