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Navy Clearance Divers

 

   
Naval Clearance Divers are the Australian Navy's Special Operations units. While there is sufficient debate about their "Special Forces" status to omit them from SOCAus control, their capability, training and selection warrant such a distinction.

 

Clearance Diving Teams (CDTs) are very similar to the old American Underwater Demolition Teams (UDTs were merged with the SEAL teams in 1983), and in fact used to work with them in Vietnam. They undergo very lengthy training program (longer than the US Navy SEALs BUDS by several months) and are trained in both diving and combat operations. The CDTs are organised into 4 task elements: Headquarters, Mine Counter Measures, Maritime Tactical Operations, and Underwater Battle Damage Repair. They are capable of deploying separately or in combination with other elements of the ADF.





Capabilities

The very detailed Australian Navy site, gives some great information on the CDTs (click here). In summary, CDTs operate in environments up to 54 metres deep and are planning on expanding this to 90m. They engage in Marine Tactical operations, mine counter measures, and underwater battle damage repair. For the Marine Tactical Operations (MTO) they are well trained in small arms, escape and evasion, combat survival and various insertion techniques including parachuting (article on MTO exercise is here). This is what makes them SF - they are clearly capable of undertaking "special operations" for the Australian Navy. Moreover, they are well regarded by their SF peers in the Army.

They are also well trained in hydrographic reconnaissance and have put this skill to good use during the conflict in East Timor wherein they provided recon data of the ET shoreline and Harbours to planners in Canberra (click here for an article on the CDT recon survival course).

Mine Counter Measures and Explosive Ordinance duties include:

location and disposal of sea mines in both deep and shallow waters,
the rendering safe and recovery of enemy mines,
search and destruction of ordnance below the high water mark,
clearance of surface ordnance in port or on naval facilities, and
the search for, rendering safe or disposal of all ordnance in RAN ships and facilities, including the removal of Improvised Explosive Devices (IEDs).

Marine Tactical Operations include:

clandestine hydrographic survey of an amphibious beach or port facility,
clandestine clearance, demolition, or emplacement of sea/land mines and/or obstacles, and
clandestine placing of charges, demolitions for the purpose of diversion or demonstration.  (Source)




   Training

Navy personnel must pass the 11 week basic seaman course in Western Port Bay, Victoria. After this potential CDTs undergo a very arduous and lengthy program to be qualified as able divers. In total the program lasts 43 weeks and consists of the following:

Basic Seamanship - 4 weeks

Small Arms Training - 4 weeks (undertaken either before or after Basic Seamanship)

SCUBA Air course - 3 Weeks

Clearance Diver Acceptance Test - 2 Weeks

Basic Clearance Diver Course (approximately) - 34 Weeks

Clearance divers are also known to attend some courses at Singleton Army training centre including a recon survival course, and in some cases CQB training with the TAG. (see above articles)

Due to the investment that the Navy puts into potential recruits there is a minimum period of service for both Officers and Enlisted RAN divers of 6 years.

Selection

Once having completed the SCUBA air course all recruits must complete the Clearance Diver Acceptance Test. If applicants fail here they are required to either change specialties or exit from the Navy. The selection test is two weeks long and is well known to be rigorous but the attrition rate has yet to be officially stated. The following table illustrates the expected level of performance for potential CDT sailors.

  2.4K run Sit ups Push ups chin ups 500m swim
week 1 SCUBA course 12 minutes 60 30 6 14.30 min
CD acceptance test 10.12 min 60 30 10 13 min
Completion of CD course 9 min 120 50 18 9.1

 


Great story about CDT3 in Gulf War 1 Note: CDTs took Australia's only prisoner in the first Gulf War (official statement)

CDT4 gets commissioned

Article on their role in East Timor

In depth story on CDT in Vietnam

CDTs 1967-71

   

 

 

 






















 
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