Kapten Boat Collars are a small boat stabilizer for standard tinnies,
V-nose/flat-nose punts and most timber, fibreglass, & plastic hulls.
SOLVE TIPPY TINNIE ISSUES
Small vessels have always rocked and rolled, so it's time you enjoyed a stable boat: moving about at-will, safe & steady boarding, and a confident crew.
GET YOUR CONTROL BACK
Whether crossing bars or crossing the wake of a large vessel, you no longer have to put up with your boat's tendency to broach, nose-dive or capsize.
TURN CHOP INTO CLOUDS
We've all put up with the dredded tinnie slap. Our backs suffer the repetitive bang, and the crew complain. A comfortable ride is as easy as ABC (A Boat Collar).
THE BENEFITS YOU'VE BEEN DREAMING OF
STABILITY OF A CATAMARAN
Like buoyant "feet" all around you, your footprint in the water is increased, making your boat feel much bigger, when you move around and when travelling. Other stability products only work when at rest, but your Boat Collar works at all times to keep you balanced and comfortable. Boarding of a monohull has never been this stable and safe.
Over half of all fatal boating accidents in small vessels are due to capsizing and falling overboard (NSW DoT findings for 2002 - 2012). Why do boats capsize? Essentially, because they're unstable. Why do people fall overboard? Usually, because their boat is unstable. A stable vessel is not just about comfort, it's about keeping your crew safe and secure in your vessel. The conditions on the water are simple: if you're not in your boat, you're in trouble.
Click images for captions and to enlarge.
4.2m Stessco Catcher
"[the kids] were moving about the boat like it was an aircraft carrier. I was about to remind them of our earlier brief, but the boat was so steady, I let it go, and they had a ball." - St John J.
"...It’s like I’ve got a different boat altogether. It feels even bigger... The stability of my boat is now fantastic. In the two years I’ve had it, I can’t fault it, and I always recommend it to other boaties.” - Andrew Taylor
4.35m Allycraft Intruder
"Rhonda found it far more stable to climb into... Great stability and supreme confidence in moving around... We increased load to 3 adults and a small dog and felt like nothing changed at all. " - Steve
SOFTENED TINNIE SLAP
A greatly softened ride is generated when the down-angle of the reverse chine shape traps the upward-pressure of spray between your hull and your KBC.
It's a similar action to hydrofoils: the fire-hose type pressure produces lift, so your boat rides higher in the water, lessening the ups and downs and slowing vertical impact. And, of course, all that spray that's used for lift, makes for the driest ride you've ever experienced.
"Chop turned to smooth on the way to Maroochy Mouth, and it was gusting to 41km/h at test time... No spray in any direction."
- Ben W.
"I used to arrive at the boat ramp drenching wet, but now I laugh at the other guys dripping wet, because I'm bone dry."
- Andrew Taylor
4.35M Allycraft Intruder
"...at 31 knots...we would get a fair spray over the bow and windscreen but not this time. Absolutely no spray and no more tinny slap."
- Steve F.
550 Savage Cobia
"...600 to 700 mm chop, and I travelled straight in to it. Normally I would have to slow down so I would not have the spray in my face!!"
- Neil G.
"[she] immediately said how much smoother the ride was. One of the kids napped on the casting deck on the bow on the way home [at 19kts], previously unheard of." - Mike N.
3.9m Haines Hunter
"...a good 15 knots... swells coming fast and thick, but with the collar you could not feel any of that. The collar just glided thru the water and kept the spray back also." - Jacqui
DIRECTIONAL CONTROL AND BROACHING RESISTANCE
Just passing another boat's decent wake in a river is enough to cause some dinghies to broach, nose-dive and capsize. Now, whether you're a small tinnie in a river, battling the wake of other vessels, or a larger boat crossing bars, you can have the confidence that your dinghy can handle practically anything you come across. We've tested it to the extreme.
How does it work?
First, The reverse chine is a very specific angle and width in order to act like surfboard fins. Without fins, a surfboard slips and slides on waves, allowing no control to the rider. In the same way, without the cutting action of a KBC, your boat lacks lateral grip and can be challenging or dangerous as soon as the water's not calm.
Second, the buoyancy added to either side of your boat resists instability, even at-speed.
Third, the reverse chine carries all the way to the bow and stays just as radically wide as the sides. This is for hydrodynamic lift to force the nose out of a trough and to prevent nose-diving.
4.2m Quintrex Dory
"I turned sharply to the left and ended up in a deep compression wave. The bow started to dig in, but the Boat Collar lifted the bow up, and I was able to keep the power on and get us out of it."
- Ranger Geoff J.
4.5m Savage w/ BarCrusher cab
"In a large following sea, the transformation is equally pronounced, with the vessel maintaining a far more consistent running angle. Especially as you approach the backs of larger swells ... the bow shows no tendency to plough, but just lift." - Colin B.
"The boat now tracks straight no matter the swell and fighting the tiller is a thing of the past... Coming into the river mouth at day's end was a breeze. [When] the afternoon swell...turns into a veritable washing machine fraught with danger...the boat tracked true and it was a real non-event." - Mike N.
4.2m fibreglass Rouge
"Even when the the chop was a good 2 metres, I was so impressed. The boat handled so well, I didn’t even think about the waves. I can take any waves at any angle, no worries." - Jake A.
THE LIFERAFT QUALITY OF LEVEL FLOTATION
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 story we hear all the time, 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 does 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.
How is "Level" flotation better?
Level flotation is achieved when the right amount of buoyancy is used to 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 liferaft 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.
"...we have attempted to sink her (pulled out the bung and filled her up) and she stayed afloat with both Bryce and I onboard. In the event that we did need to abandon ship and were caught in rough weather, we would use this same technique (filling her with water) to lower her center of gravity." - Alissa and Bryce
“My 4.8m boat is well designed with good high sides, but it still got swamped by a wave and capsized, despite the seas being relatively calm that day.” - Andrew Taylor, who got a Collar after spending 10 hours clinging to his upside down hull (Epirb and flares sank). After sunrise, he swam 4 klms ashore, and his close-call made the paper.
Commercial 3m Polycraft Tuff Tender
Passed level flotation to 315 kgs (3 people + weights used for test). Passed by Nick Lockyer, of KPSmaritine.com.au. Two boats used for commercial day hire.
- Redcliff Hire Boats
Air spaces flooded, too
Commercial 4.2m Allycraft
"It is worth noting that the boat [with KBC] is in survey for 5 people - one more than the boat compliance places state."
- Club Crocodile
DO YOU HAVE COMMERCIAL BOATS THAT NEED CERTIFIED LEVEL FLOTATION?
ABOUT THE INVENTION OF KAPTEN BOAT COLLARS
The boat you see on waves in this video is me, an old surfer since the 1960s, who has been addicted to boating since I was a boy. It's what drew me into becoming a qualified boilermaker - to build boats! I built many boats for others, before building my own sailing yacht in 1993, which we swapped for the family home, for 8 fantastic years. However, the unsafe choice of either a tippy tinnie or deflatable RIB, for my family's daily travel, really got under my skin.
However, it wasn't until 2009, when a bar crossing nearly capsized my 4.3m tinnie, that I was pushed to invent the Kapten Boat Collar. The near-miss scared me enough that I quit the best job of my life and put all my effort into solving the problems of most small boats, that had bugged me for decades.
To this day, I still live and breathe the Kapten Boat Collar (and now Waverider boat) solution, because I want to make a difference.
Office: (07) 5441 3636
Mobile: 0423 499 047
58 Arundell Ave Nambour, QLD, Australia 4560.
Australian Patent # 2010210449. American Patent Application # 13/083,588 - Watercraft Accessory.
Marine Safety Innovations Pty Ltd.
ABN # 53 141 908 385
Australian owned & operated since 2010