Pacific Marine Defence


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Technical Advisory Board

PMB Defence has benefited from the experience of a Technical Advisory Board since it was established in 2007.  Its function is to provide guidance on both technical and submarine domain matters such that current and future developments can best achieve the requirements of our customers. Current members in addition to our CEO and Engineering Manager are:

Dip. Mech. Eng. B. Eng (Hons) Ph D

Dr Abell, also a Director of PMB Defence, brings with him a wealth of technical and commercial acumen.  His Academic credentials and success in building the defence business, CJ Abell & Co from start-up in 1981 through to its merger with the Vision Systems group and ultimate sale to Tenix Defence in 2000 has proven invaluable.  In addition to this, Chris has held Directorships with Vision Systems Pty Ltd (1986 – 2001), Saab Systems Pty Ltd (2000 – 2009),  Australian Wool Innovation Ltd and WoolStock Australia Ltd (1999 to 2002).

Principal activities have included Engineering Development in Electronics, Engineering and Physics for Defence and industrial product development and manufacture.

Major achievements include thermal imaging and electronics surveillance system development and products for the Australian Department of Defence and Laser Airborne Depth Sounder systems for Australian and US Departments of Defence.

Academic Positions

  • Research Fellow, Cambridge University, UK 1974 – 76
  • Research Fellow, Senior Research Fellow, University of Adelaide 1976 – 81
  • Visiting Fellow, Herman Fottinger Research Institute, Berlin 1978
  • Visiting Researcher, University of Helsinki, Finland 1975


Paul Greenfield spent 32 years in the Royal Australian Navy as a weapons electrical engineer and submariner.  From 1987 to 1992, he gained experience contracting major ship repair in Western Australia at a time when work elsewhere was done by naval dockyards.  He was the Project Director’s Representative in Adelaide during sea trials for the submarines COLLINS and FARNCOMB and in 1997 became Chief Staff Officer (Engineering) to the Fleet Commander. 

Later he assisted Dr Malcolm McIntosh and Mr John Prescott in their independent review of the COLLINS Class submarines and subsequently was involved in the recovery program, including in 2000, as Project Director, the negotiation and delivery of two ‘fast track’ improved submarines by years end.  Then as Director General Maritime Development, he precipitated a shift in acquisition strategy for the Air Warfare Destroyer project, resulting in the government’s choice of the US Navy’s Aegis Air Warfare system before project approval, considerably reducing the risk.  He also established the Armidale class patrol boat project, the Landing Helicopter Dock project and the ANZAC Ship Anti-Ship Missile Defence project using the active phased array radar from CEA Technologies.

Paul joined PMB’s Technical Advisory Board in 2007, and has amongst other things, provided a crucial submarine domain context to PMB’s product development initiatives.

B. Tech (Electronic Engineering), Grad. Dip. (Mathematics)

Gavin has over 40 years’ experience in Defence and high-technology product development.  His career includes time at the Weapons Research Establishment, the Defence, Science & Technology Organisation , Vision Systems and Tenix Defence.  With qualifications in both Engineering and Mathematics, Gavin was involved in the ground-breaking Laser Airborne Depth Sounder (LADS) from conceptual stages through to defence and commercial application of the technology over almost 30 years.  In addition he has played roles on the Jindalee “Over the Horizon Radar” and various other security and high technology products.  Gavin brings a wealth of practical experience to assessment of current projects and proposed research and development proposals.