There is an older tunnel V that I want to take a look at. I have heard about them swapping ends on people before. Seems like most of what I read it happens when people are hammering down on a turn and have their Jack plate way up. There are a couple comments I’ve seen where people have said they didn’t have it jacked way up. Is there anyone that can give any first hand info on this? I really think I want to take a serious look at this boat but the tunnel v swapping has me wondering if I should keep looking. Advice is much appreciated.
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It depends on the tunnel vee and how sharp the bow or better said how much the vee is in relation to the hull length. I had a 19ft Explorer with a 150 Yamaha. If you google to see a pic of that hull you can see how large the vee is on that shorter hull. It was a dangerous design. If you look at their 21 or a Shoalwater the vee was more gently sloped and not so severe. Some call it swapping ends some say bow steering because what happens is the bow stays hooked up but the back end of the boat does not because of the tunnel and flat back.
I have run boats since I was a kid. It is not user error on some of these hulls. Mine almost turned me into a barge on the intercostal going about 40mph with the jackplate all the way down. I got rid of it the next week.
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My first boat was a Shoalwater 22 legend. Same hull design as the others mentioned. They will all swap ends on you if you aren’t used to the boat and how to drive it. They all have a V bow(keel) and a flat back end. The keel grabs and the back end slides around. Mine was terrible in quartering swells. The bow would catch and jerk down into the well. Had to be very careful in that situation. The boats are fine as long as you understand why it happens. I didn’t let anyone drive mine that wasn’t familiar with it. Most guys will trim down going into turns with shallow water boats. When you trim down with that hull design it will force the bow down even more making it want to catch. I saw a guy spin a Mowdy coming into the Mansfield harbor. Happens fast. Wear your kill switch and a Mustang when you run. There are lots of them on the water and it shouldn’t keep keep you from running one. Just don’t push it in turns or quartering seas.
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Honestly any boat with a jack plate can do it. I swapped ends in my 21’ flats cat motor all the way up making a hard turn in 4-5” of water and the back spun out.
I’ve been in a 21’ explorer plenty of time with a very dangerous captain and it never happened.
Just use some sense and you will be fine there are thousands of that style boat on Texas waters and you don’t hear about it that much.
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Most definitely!!!
I sold mine a couple years ago. Was a custom PIRATE. Same hull as a 21'9" EXPLORER.
Had mine swap ends on me several times. The 1st time it wasn't my boat yet, jack plate was stuck a couple inches up, luckily I was by myself just running it in Little Bay in Rock Port. In a slight turn it just swapped ends on me. Only thing that stayed in the boat was my left hand on the steering wheel. Later a new Motor was installed with a new jack plate. A couple years later I
bought the boat from my friend & decided to remedy the problem.
I built a custom cavitation plate, helped a little bit. Replaced 3 blade prop with a heavy cupped 4 blade prop, also helped with the problem. But no matter how careful I was, it was still dangerous. The next time it spun on me we were headed to fish past the J Hook in POC one Nov. cold morning. A boat was parked blocking the channel after we rounded the corner. While in a turn I let out of the throttle & the boat suddenly did a 180. Luckily we all stayed on the boat ( including the previous owner )
I decided to do more tests in Lake Austin. Forced the boat into multiple spins but could not replicate what happens accidentally.
It was so bad I would not let anyone ( including my 2 boys ) operate the boat. Decided to sell it ( fully informing buyer of the problem ) & buy a C25 Mowdy.
In my honest opinion, I think the problem comes from several factors.
That pocket tunnel creates an air pocket that the rear of the boat sits on & cavitates the water to the prop.
The sharp V nose can create another part of the delima, it will bite another boat's wake, if in a turn, it will send the transom around. It will also happen running at speed in a slight turn if you have to decelerate, the nose will bite & the transom will break loose.
I don't want to go on a rant & tell you not to buy the boat, just be sure you understand the risks & what can happen, it's that important.
A lot of people run tunnel V's & have no problems, some have had problems, another friend had a TV shoalwater & threw a 4 guys out of the boat 1 time. All watercraft can be dangerous, just know your craft.
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