The study and understanding of the art of hydrodynamics is almost a life long thing. I have been studying this for most of my life and I still learn things all the time. To me that’s what makes boat building such a great thing.

This is spot on! As a recent example for myself, I have a 21' bowrider I/O. When I added a 3 additional deep cycles to the back (for my 36v trolling motor) - the boat would porpoise and generally rode much worse than it did before. It was off balance. No amount of trimming would really help. Sadly I didn't have any options to move the weight up front either (unless I had passengers to sit up front), so in MY case, the hydrofoil did WONDERS. It put the boat back to 'stock' as far as how it rode. But I know the root problem was the 4x total deep cycles I stuck in the stern. Hydrofoil wasn't the perfect solution, but in my case, it seemed to do the trick. I now in hindsight kind of like it too since it covers the prop a bit - so when we are motor off, swimming in a cove and the kids are getting back in the boat, it protects their little feet from accidentally kicking the prop.

There is a lot of great and valuable information in this video. Thank you. Our boat had a pretty "flat" hull from the center to the stern. It's perfect when the sea is calm and flat, flying over the water. But when it's choppy, the hull tends to slam into waves. Boats hulls also depend on the use it was designed for. Our boat is a perfect little summer bay boat to be used in fair and calm weather. Every boat owner must be conscious of the characteristics of his boat. I'm sure your video will be a great help.

Excellent content. Your knowledge and experience is a joy listening too. Maybe a small model boat or an RC boat would have helped conveying ideas to your active listeners. Much thanks, this video will be a great resource for future listeners.

Great job covering the porpoising topic from my comment! On my boat, after changing props, adjusting motor height, and relocating as much weight forward as I could (without simply adding more weight), I concluded my issue was poor weight distribution for the hull design from the manufacturer. I opted for the “band aid” by adding trim tabs instead of making major modifications to redistribute the existing weight. Thanks!

Another video idea for you. Make a video about some of the most popular saltwater boat models and the features people like that make them so popular. One example: Carolina Skiff DLV/LS models: simple, affordable, decent ride for such a shallow draft. What I’ve found that somewhat sets them apart is that they have higher gunnels (preferred by buyers with families) and more weight/person capacity than most all other comparable boats that have similar draft and price range. Yes, they are mass produced and have quality issues but they have nailed the features many buyers want. I’m honestly surprised that more manufacturers haven’t caught on.

Dude? How am i just finding this channel. Ive been subscribed to your other channel for years. Cross advertise more.

On giveaways, usually have someone comment something specific. I.e. favorite product, a story, how they handle a situation. Then pick one at random.

un balanced hull. a good hull hand layup man measure the amount resin that can make or break a hull. this all starts in the mold.all glass used is measured in as well.

My 23 Donzi with a 2 stroke 250 mounted on a bracket porpoised like crazy unless I buried the trim tabs. My 30 Intrepid with twin 300s that has a stepped hull doesn’t porpoise at all. I can run it all day with no trim tabs. The stepped hull lifts the stern so you don’t even need them.

My brother was pulling me on a tube in a chaparral and couldn't throw me because he was trimmed up and couldn't turn sharply after every turn he would look back and I was lounging on the tube which would piss him off even more. When I pulled him he couldn't figure out why I could toss him like a rag doll LOL!

Good information 👍. I've recently added a pod and a 270kg bf225 Tohatsu-honda to my 22ft cabin boat which was powered by a Volvo inboard I've only tested the boat twice so far in the river my boat is handling the outboard no problem it has a hydrofoil which I don't think is necessary and I think is dragging the boat and like you said I've had to rearrange the weight battery's and moved fuel tank forward .. I have a bit of a problem my motor has a overheat alarm only at idle Im going to change the pump and thermostats even though water is peeing pretty good and my question to you is do the these bf225 Honda V6 car engine outboard motor's have a pottet value or water regulator valve I can't find any information or videos on these motor's about the presser value on my phone but smaller 90hp Honda and every other modes motor's I can do you have any ideas that might answer my question 😁

Great info

Speking of hull shapes....would a hook in the hull case bow to dig in a speed? Friend has a 14' aluminum with mercury 15hp and no matter what trim hole he adjusts his trim pin to he says his front end digs in(even farthest out hole he says it digs). Been trying to figure it out for him as hes currently the slowest boat in our crew and would like to go places faster and farther so i need to help him figure his boat out. Pretty sure he has the correct length leg hes not running a 15" shaft on a 20" transom or anything dumb like that his cavitation plate is fairly level with hull from what i remember (next time i see his boat ill check to see if its level,above or bellow hull).

I wish you were close to where I live (Miami Beach) so that you will be my boat mechanic. I have a 2021 Cobia 320. I have noticed some vibrations at low RPM 2k. Any suggestion??

Excellent video

Thank great inf

What is (or do you have) an opinion on Tohatsu outboards? I know the older ones were simply rebadged Hondas, but now their smaller horsepower series are a proprietary design. I will need to repower a 14' McKee Craft soon and I have been looking at Yamaha, Suzuki, and Tohatsu 60 HP engines. The Tohatsu made the cut because I can it, rigged and installed, for significantly less money (~ $2,000) less than the Suzuki or Yamaha. I do have a Tohatsu dealer close by, so parts, service, and warranty issues aren't a significant concern. Curious to hear your thoughts.

i was thinking that maybe those tools that pick random comment as winners but it will be time consuming to connect with them after to get their info for you to ship those items or someone can pretend to be winner by emailing you etc... if you do something like creating dedicated email adress where people can email you to join giveaway you would have direct way to contact them if they win but it will be outside yt so you miss on engagement in comment section and chance for algorithm boost to promote your content to more people

Giveaways are easy, just give it away.

Great info