Like a life-ring for your boat, level flotation ensures your boat stays floating, but more importantly, keeps your boat in the upright and stable position, so you and your loved ones can stay inside and await rescue.

2 men and a young boy capsized on the Caloundra Bar.

Kapten Boat Collars helps prevent your boat capsizing - before and after your boat is flooded.

NSW Boating Incident report 2017 (pictured right) shows open runabouts alone recorded;

  • 150 Capsizes
  • 35 sunk boats
  • 37 swamped boats
  • 1 flooded boat

If you can keep your boat afloat, you have a much higher chance of survival as you're not exposed to dangers in the ocean and exposure to hypothermia.

NSW 'Boating Incident Statistical Report' 2017
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Dangers of "Positive" or "Basic" flotation in boats

Dangerous, really? Yes, because this smaller amount of flotation is often placed under a vessel's floor or in the seats, so when that boat then takes on water, the buoyancy (air) is under or below the weight of the crew. Where does air want to go when it's underwater? The flotation rises the hull to one side, the water sloshes to the other side, the boat loses all balance, and the crew is tipped into the drink, while all your fishing & safety gear sinks. It's a traumatic story we hear frequently, and it happens very fast!

So why is "Basic" or "Positive" flotation used so often?

Well, Level flotation takes up more room inside, and is more expensive to build into a boat, so Basic/Positive flotation is used to keep space at a maximum and retail prices affordable. Basic/Positive flotation is meant to keep a compromised boat from sinking down to the depths. It just leaves the crew paddling and clinging to the bow (usually) until help arrives, so life-jackets are paramount to survival.


Level flotation

How is "Level" flotation better?

Level flotation is like a life-jacket for your boat. When the right amount of buoyancy is used in the right place, it will keep a flooded vessel, full of crew and equipment, balanced and safe. Kapten Boat Collars do this by placing the flotation around the outside of your vessel, giving it a life-raft quality that's similar to an inflatable boat, while taking up no room inside your boat.

All commercial boats in Australia must have level flotation by law, because it gives the crew of a swamped boat the best chance of avoiding injuries & exposures, like hypothermia, but also allows them a chance to motor ashore to safety.

At the end of this flood test, the crew of three were able to motor all the way to shore, with the bungs still out! In a serious situation, this ability could be a lifesaver.

Flood testing a 3 metre Polycraft Tuff Tender for commercial survey. Other than the 3 people, there are weights on the floor, so that the boat passed for 315kg.

The first thing Alyssa and Bryce wanted to do with their new Collar was conduct their own flood test. They got it so their 3m tender could double as a type of liferaft.

The above photo shows phenomenal stability of a flooded boat. One person stands in the centre and two are stand on the side, without any fear of the boat dangerously tipping.

After this flood test, Bryce was able to sit to one side, knee deep in water, and create all that motion of bucketing out the water, without any signs of tipping.


Office: (07) 5441 3636
Mobile: 0423 499 047
58 Arundell Ave Nambour, QLD, Australia 4560.


Australian Patent # 2010201449. American Patent Application # 13/083,588 - Watercraft Accessory.
Marine Safety Innovations Pty Ltd.
ABN # 53 141 908 385
Australian owned & operated since 2010


Exquisite plate alloy boats with in-built safety and stability as top priority, with even better Boat Collar like performance.