Great Circle Oceanmaster ® Great Circle Oceanmaster ® Life Rafts are designed for extended offshore commercial and recreational boating.

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Great Circle Oceanmaster®


Full featured, extended offshore life raft

Great Circle Oceanmaster® Life Rafts are designed for extended offshore commercial and recreational boating and they meet or exceed the highest specifications set down by Australian marine authorities, International Organisation for Standardisation (ISO) and boating associations. They feature premium components, top quality craftsmanship and meticulous quality control. If the worst should happen, in the most demanding of sea conditions, you can be confident that your Great Circle Oceanmaster® Life Raft is designed and equipped to help save your life.

  • ISO9001:2000 and GJB 9001A-2001 – Quality assured life raft manufacturing facility, certified by BVQI.
  • ISO 9650 - 1 – International life raft design, manufacture and quality certification
  • Yachting Australia / Yachting New Zealand & ISAF compliant
  • NSCV (Commercial Survey) approved


Key Features

Great Circle Oceanmaster®

  • Double, fail safe buoyancy tubes and auto-inflatable arch/canopy support system formed from neoprene/polybutadiene rubber and polyester fabric. This high-tech, three laminate fabric, is purpose made in our factory and is time proven for its long lasting integrity, strength and lightness.
  • Rip stop nylon canopy. Our high stitch count canopy fabric is immensely strong and time proven for a long life, avoiding stress fractures on folded crease lines that often occur with cheaper plastic and polyurethane canopies.
  • CO² /N² inflation system features premium quality gas cylinders and firing mechanism. Designed to inflate correctly at an ambient air temperature of between -15º and 65º C.
  • Insulated floor of aluminium composite cellular foam, neoprene/polybutadiene rubber and polyester fabric. 
  • High visibility orange colour on underside of hull, canopy and stability bags.
  • Choice of emergency equipment pack, featuring premium quality components.
  • High capacity & weighted stability bags.
  • Manually deployed, heavy duty drogue (sea anchor) with minimum 15 metres of line and anti-foul swivel.
  • Semi-rigid boarding ramp and support handle features high visibility colour with interior assist bridle.
  • Extra large entrance for easy boarding. Entrance closures feature heavy duty dual zippers with ventilation tie-backs.  
  • Uni-directional retro/radar reflective segment across arch.
  • Rainwater catchment system with closable delivery tube.
  • Viewing port and vent.
  • Heavy duty righting line system.
  • Easily accessed and clearly identified buoyancy tube topping up valves.
  • Exterior lifeline and interior grab-lines.
  • SOLAS standard exterior survivor locator light and interior light. Both lights feature highly reliable, low current draw, LED lamps with separate on/off switches.
  • Retro-reflective tape segments on underside of hull and on canopy.
  • Minimum 10 metres painter line.
  • Choice of top quality fibreglass canister or urethane valise pack (four, six & eight person raft only).
  • Vacuum packed for greater environmental protection and prolonged service intervals.


Why is ISO Certification Important?

Great Circle Oceanmaster life rafts are manufactured to ISO 9650 – Group 1, the new international life raft standard for blue water, ocean applications and it has further enhancements that surpass the National Marine Safety Committee’s (NMSC) requirements so that they can be used on Australian vessels in survey.  Great Circle Oceanmaster life rafts are listed on the NMSC’s Register of Compliant Equipment for Commercial Vessels [Please see:www.nmsc.gov.au and select ‘Approved Products’ tab, Life Saving Appliances (item 37).

In the context of life raft design and manufacture, ISO has many criteria covering all types of shipping, both commercial and leisure craft. ISO 9650 for instance, is a new, comprehensive, technical specification detailing all the materials and manufacturing processes used in the construction of life rafts for smaller commercial and recreational vessels. Performance requirements covering inflation, launching, material resistance, buoyancy and interior space are also spelt out in detail.

12 Year Guarantee (conditional)

Our confidence in the quality, workmanship and reliability of our life rafts allow us to provide a 12 year guarantee for all the life rafts we manufacture, provided they undergo inspections at required intervals in a Great Circle Life Raft’s approved service facility. The guarantee is valid only on return of the guarantee card and subject to the terms and conditions therein.

Deck and Locker Stowage Options

Life rafts can be stowed in two ways: a non-waterproof soft valise for underdeck or locker storage and a hard fibreglass canister for on deck. Great Circle canisters are equipped with two or four handles (depending on the model) which provide a better grip for carrying and also makes throwing into the water easier. Deck mounted canisters endure many years in the tough marine environment and Great Circle’s solid fibreglass cases provide the best in protection. Sealed in its protective envelope inside the canister, your life-raft is ready for any emergency.

The valise option still requires that the raft be protected from chafing and sharp objects and a dedicated locker devoted to abandon ship equipment is recommended.


Canister Storage Option

Neat and low profile hard fibreglass case for cradle or deck mount stowage.


Valise Storage Option

Compact, strong and highly visible polyester case for locker or cabin stowage


Hydrostatic Release Unit for Life Rafts


Salcom Servo-Release™ HRU

 Designed and fabricated from tough non-corrosive materials and with an integral quick release mechanism, the Salcom Servo-Release™ HRU represents innovative thinking and real cost saving benefits in automatic hydrostatic release units (HRU).


At a depth of 1.5 to 4 metres, water pressure alone is sufficient to depress an internal diaphragm in the HRU and operate the release mechanism. This offers considerable advantages both in reliability and performance as the releasing system does not depend on a sharp blade, a pyrotechnic device or a battery to release the life raft or beacon.


Salcom Servo-Release™ HRUs meets all international regulations and each unit is individually tested to ensure that it is the most reliable HRU in an emergency situation.