1000#+ is a lot to hang on a transom that was never designed for it especially when you add the leverage of the outboard bracket. I was shocked when I saw the inside of the transom with no additional support added, amazing that it lasted as long as it did.
That's the same concept as a modern day stepped hull boat, they just did away with the little holes and slots and just made it one big slice across the bottom so marine growth wouldn't clog up the little holes.
To really do that bracket properly the boat should have one piece stringers running front to back. Even scabbing on to stringers isn't great. Ide run them through the transom into the bracket.
Its amazing how many holes have been in that transom over they years incliding what looked like a full second set of bracket mounting holes poory plugged on the inside of the transom. Going to be a killer ride when it is completed......can't wait to see it!
Interesting comments. This was made by Fisher Marine Tech started in 1982, (of Body by Fisher fame). They bought the old Rybovich yard (hence the model name Rybo Runner) This was the first leisure boat hull that had a stepped hull design. They found out that sea plains used step hulls with air boxes for venting made faster and shorter take offs. Fisher made around 80 or so of these boats before selling the molds to various companies, all were center consoles except one had a trunk cabin, none were inboard powered of any kind, but were made to support 2 stroke outboards on a short bracket. With modern 4 stroke engines of 250hp you can get around 30 mph cruise at around 3800 rpm with a top of over 50. So my advice is do your research, seek out good advice and dont design a project by using your wallet. THANKS..
one of these Rybo Runners popped up in our neck of the woods in Wilmington NC way back in 1983. Had 2 OMC See Drives and was the biggest center console anyone had ever seen back then. There were a few 30 foot Wellcraftd Scarabs around
I have one of those boats, super cool to see you guys redoing one. Looking forward to see what kind of speed and burn numbers you guys get when yours finished
A offshore powerboat race team I use to be affiliated with had a boat with intake ducts on the deck to vent the steps. Glassed in tubes from deck to step! A fast v-bottom!!
Super nice video! Really enjoy your content! That setup on an older boat with a transom bracket is something a lot of boats deserves to really stand out. I see a lot of newer boats with a "janky" outboard setup that could be made so much better, combining the swim-platform from the bracket with the couple of extra feet you then also get to make the boat ride better. Really the best of both worlds.. Greetings from Norway!
I have worked on many of those boats. They came with OMC sea drives basically what you would consider the first outboard with its own bracket never seen one with inboards also that hull would have issues if you left them in the water marine growth would get in all the air gaps and make the boat a tird.
honestly there's 0 chance any of the coring/flooring/glasswork around the holes designed to "force air under the hull" etc. is solid at all, any wood in that boat is suspect at best
It looks like if you started trying to do fiberglass repairs on the bottom and hull of that boat especially around those holes for "routing air" you would basically grind the entire boat away before you could start adding glass.
Dam, lucky them 300s didn't drop off the back 😂. Way under strengthened for those beasts. Good job it's getting sorted now. Look forward to seeing the progress 😊
Weight of two motors 1,100 lb total and about 40in lever arm creates 350 lb/ft of static torque. In the dynamic this numbers will be multiplied unpredictably. In the absence of any vertical reinforcement, this forces are distributed between two lines of bolts 12 inches apart. All arguments about motor platform own buoyancy, it's nothing but .. I will follow this project with a great curiosity)).
That's interesting. Obviously that was not the right way to install the bracket! Please, keep us posted with the fixes. I would also be interested to see how that boat "flies" at the end - if the owner agrees. You certainly got to see funny things in your boat yard!
After you put the stringers in, have you thought of using that cement-like filler stuff some guys use to pour in? It looks like a perfect space to fill and they say that stuff is super strong.
Thats a jet step.. and they were developed for Flyboat hulls way back to allow them to get up on the plane and break the stick-tion effect of trying lift the hull off the water especially if the water was very flat.. Before that if they were heavily laden they might be forced to cross their own wake or send out a launch to create a wake to lift off.. These sort of features were certainly seen on Grumman's and earlier hydroplane boats.. Someone clearly hadnt thought through the conversion process. .. and just fitting bigger outboard engines is like fitting big V 8 motor to the boot lid of a lotus seven.😖 Its lucky they didnt rip the extension off and the transom with the motors going to the bottom followed by that otherwise nice hull.🤦🏻♂️
I didn’t know Rybovich made boats that small, and they never built an outboard boat. You know you’re filthy rich when you own a Rybovich but this one has seen better days
If your interested in checking them out just look up Rybo Runners. They didn’t make too many before selling the molds which went to a few folks before being sold to dusky. It’s the same hill as is used in the dusky 33 but has a different cap. I have one and they are pretty cool boats for sure
designed for an Inboard. (with scuppers...lol) those slots and holes that create an air pocket to primarily reduce water to hull contact/friction/drag will also create added pressure at the transom
Very nice boat! Love the design and the theory behind the vents in the side leaning under the boat. However wouldn't this cause the outboards to not get sufficient cooling water, would it also not contribute to ventilation and possibly cavitation? Or are these more on the outboard sides of the boat so the air really never makes it to the center where the engines are? Would really love to see the outcome of this boat.
I’m starting this job on Tuesday and could use any pointers.. not so much doing any stringer work, just removing the deck cleaning it all up and reinstalling it…
Check out Andy at Boatworks Today. th-cam.com/users/boatworkstoday He made this modification on his Bertram. I think he put two Yamahas on his. It was a monumental job.
Watched again, I'm curious to know if the fiberglass guy condemns the boat or actually starts cutting everything away and redoing it, I can't imagine the fuel cell area, stringers, coring etc. is anything but rotten. That's a big can of worms!
I just started watch Born Again Boating a few months ago. It seems to me that the owner spent a lot on the boat, but not enough on the bracket. Too much money, not enough common sense.
It’d be sweet working at Born Again Boating. Chill’d workers. Interesting work. Sweet boats. Lots to learn. Nice. 😎
1000#+ is a lot to hang on a transom that was never designed for it especially when you add the leverage of the outboard bracket. I was shocked when I saw the inside of the transom with no additional support added, amazing that it lasted as long as it did.
That's the same concept as a modern day stepped hull boat, they just did away with the little holes and slots and just made it one big slice across the bottom so marine growth wouldn't clog up the little holes.
To really do that bracket properly the boat should have one piece stringers running front to back. Even scabbing on to stringers isn't great. Ide run them through the transom into the bracket.
Great video great content. Look forward to seeing the progress of this unique boat and fun project ! Thank you for sharing .
Its amazing how many holes have been in that transom over they years incliding what looked like a full second set of bracket mounting holes poory plugged on the inside of the transom. Going to be a killer ride when it is completed......can't wait to see it!
You guys are just. I have been able to re-do my whole boat thanks to you guys.
Interesting comments. This was made by Fisher Marine Tech started in 1982, (of Body by Fisher fame). They bought the old Rybovich yard (hence the model name Rybo Runner) This was the first leisure boat hull that had a stepped hull design. They found out that sea plains used step hulls with air boxes for venting made faster and shorter take offs. Fisher made around 80 or so of these boats before selling the molds to various companies, all were center consoles except one had a trunk cabin, none were inboard powered of any kind, but were made to support 2 stroke outboards on a short bracket. With modern 4 stroke engines of 250hp you can get around 30 mph cruise at around 3800 rpm with a top of over 50. So my advice is do your research, seek out good advice and dont design a project by using your wallet. THANKS..
Another awesome video, Cap! Great boats from right around the corner from me … super cool to see a modern restomod like this!
Many thanks!
Those air holes are quite interesting.
one of these Rybo Runners popped up in our neck of the woods in Wilmington NC way back in 1983. Had 2 OMC See Drives and was the biggest center console anyone had ever seen back then. There were a few 30 foot Wellcraftd Scarabs around
I have one of those boats, super cool to see you guys redoing one. Looking forward to see what kind of speed and burn numbers you guys get when yours finished
Interesting boat design. Pretty cool
A offshore powerboat race team I use to be affiliated with had a boat with intake ducts on the deck to vent the steps. Glassed in tubes from deck to step! A fast v-bottom!!
This will be interesting. Thanks. I’ll look forward to your solution.
Nice hull color, l would definitely math the engines with a re spray, that would look amazing. I can't wait to see how it turns out.
Super nice video! Really enjoy your content!
That setup on an older boat with a transom bracket is something a lot of boats deserves to really stand out. I see a lot of newer boats with a "janky" outboard setup that could be made so much better, combining the swim-platform from the bracket with the couple of extra feet you then also get to make the boat ride better. Really the best of both worlds..
Greetings from Norway!
I like it! That’s a cool boat. I was just down there. Stayed in cudjoe key for the week. Got some lobster. I love it down there
I have worked on many of those boats. They came with OMC sea drives basically what you would consider the first outboard with its own bracket never seen one with inboards also that hull would have issues if you left them in the water marine growth would get in all the air gaps and make the boat a tird.
Amazing that they installed that bracket that way, enjoy the channel!
Yeah…amazing🤪.
Well I’m sure it was not designed for twin 300s probably twin 150 2 stokes or single 200
Love the channel. Great channel name too.
My friend Is going to be a BIG project 👍.
Wish you guys could build a boat for me, love seeing the work and knowledge you both have.
The refit can't be that old, whoever put those twin 300's on should have noticed the weak transom. Good thing it's getting fixed now though.
All about making the sale, there’s not many dealers left that have morals! But there are a fue good ones you just have to be careful
honestly there's 0 chance any of the coring/flooring/glasswork around the holes designed to "force air under the hull" etc. is solid at all, any wood in that boat is suspect at best
It looks like if you started trying to do fiberglass repairs on the bottom and hull of that boat especially around those holes for "routing air" you would basically grind the entire boat away before you could start adding glass.
That but was originally designed with OMC see drives My father was looking at that boat back in 1985
Beautiful boat, was there a follow up on the boat? Couldn’t find it
Dam, lucky them 300s didn't drop off the back 😂. Way under strengthened for those beasts.
Good job it's getting sorted now.
Look forward to seeing the progress 😊
Self ballast system... some of the old SeaCraft have them. Slow speed they fill with water, air on plane.
Weight of two motors 1,100 lb total and about 40in
lever arm creates
350 lb/ft of static torque.
In the dynamic this numbers will be multiplied unpredictably.
In the absence of any vertical reinforcement,
this forces are distributed between two lines of bolts 12 inches apart.
All arguments about motor platform own buoyancy, it's nothing but ..
I will follow this project with a great curiosity)).
That's interesting. Obviously that was not the right way to install the bracket!
Please, keep us posted with the fixes. I would also be interested to see how that boat "flies" at the end - if the owner agrees.
You certainly got to see funny things in your boat yard!
I only think of high end custom Carolina sport fishers when I hear the Rybovich name.
A follow up video on the repair would nice.
Enjoy your channel!... Rod in Myrtle Beach South Carolina
After you put the stringers in, have you thought of using that cement-like filler stuff some guys use to pour in? It looks like a perfect space to fill and they say that stuff is super strong.
Interesting design thanks for showing mate!
No problem 👍
Where did you get your cover for your work area??
Curious to know how thick the laminate is. Cant believe it stayed together this long.
Exactly what I was wondering. Luckily, he didn't lose these engines.
Looks pretty thick, you'd be surprised how many boats are floating around with rotten transoms.
Could use a pair of Indmar 2.3L EcoBoost inboards and EcoJet jet drives.
Motors are more than than the boat he must really like that 🚤 that hull design never took off
Ever hear of a Chris-ovich ? there was a collaboration back in the day.
Thats a jet step.. and they were developed for Flyboat hulls way back to allow them to get up on the plane and break the stick-tion effect of trying lift the hull off the water especially if the water was very flat..
Before that if they were heavily laden they might be forced to cross their own wake or send out a launch to create a wake to lift off..
These sort of features were certainly seen on Grumman's and earlier hydroplane boats..
Someone clearly hadnt thought through the conversion process. .. and just fitting bigger outboard engines is like fitting big V 8 motor to the boot lid of a lotus seven.😖
Its lucky they didnt rip the extension off and the transom with the motors going to the bottom followed by that otherwise nice hull.🤦🏻♂️
Next video
I didn’t know Rybovich made boats that small, and they never built an outboard boat. You know you’re filthy rich when you own a Rybovich but this one has seen better days
If your interested in checking them out just look up Rybo Runners. They didn’t make too many before selling the molds which went to a few folks before being sold to dusky. It’s the same hill as is used in the dusky 33 but has a different cap. I have one and they are pretty cool boats for sure
Looking forward to seeing this fixed!
When are we going to see the second part?
Is it okay the keep aluminum vhull 16 foot center console in the water gulf Florida or will salt corrode hull and sink?
Samoan man bun...gotta love it.
Three options. You forgot the Viking Funeral😂.
Donnie or Donna ? Our librarian Ms. Donna wore her bun just like that.
designed for an Inboard. (with scuppers...lol)
those slots and holes that create an air pocket to primarily reduce water to hull contact/friction/drag will also create added pressure at the transom
Beautiful boat, is it vinyl wrap or paint n what color
Very nice boat! Love the design and the theory behind the vents in the side leaning under the boat. However wouldn't this cause the outboards to not get sufficient cooling water, would it also not contribute to ventilation and possibly cavitation? Or are these more on the outboard sides of the boat so the air really never makes it to the center where the engines are? Would really love to see the outcome of this boat.
Wouldnt air under the hull increase the chance of ventilation of the propeller?
Nice job
they used to sink at the dock because of scuppers used on them below water line
Johnson v8 was made in the 80s but i agree with the twin new gen v8s
I need to see part two of this video when will it be posted?
I’m starting this job on Tuesday and could use any pointers.. not so much doing any stringer work, just removing the deck cleaning it all up and reinstalling it…
I'm going from an aluminum to a glass boat. How can I paint it easily and effectively
Check out Andy at Boatworks Today. th-cam.com/users/boatworkstoday He made this modification on his Bertram. I think he put two Yamahas on his. It was a monumental job.
What do you think of that style of trim tab?
You had enough of glassing from a previous transom?
How do the stop marine growth in side the air holes?
What are the black things where the trim tabs would be is that starboard?
There is one for sale in orange beach in dire need of restoration for 25k !
How in the world did that pass the Coast Guard certification?
So...its kind of a hovercraft!
Put in boards back in.
Medium-well is just criminal!
Not when it's a cheeseburger ;)
you aint ever heard of a transom subwoofer. hahaha im those holes are a very neat design.
Nice job boys, though Donny could be a bit more enthusiastic, his got one of the best jobs ever. 🤣🌈🇦🇺
Is there a part 2?
Yup: th-cam.com/video/mpyBN1Ujhe4/w-d-xo.html
the seguel???
How big (length, width, weight) is she?
That's a long time to say that thing needs a real transom.
If you want to know how efficient is this hull, you just calculate Crouch and Keith formulas. All the rest is peanuts!
⛵🎣🌊💯
I doubt there is a transom out there designed to cantilever two 300r’s
Watched again, I'm curious to know if the fiberglass guy condemns the boat or actually starts cutting everything away and redoing it, I can't imagine the fuel cell area, stringers, coring etc. is anything but rotten. That's a big can of worms!
Any updates
👍
Better break out about 20K. This gonna hurt
Gawd, I hate them brackets!! Very gimmicky boat, for sure.
“A Donny doesn’t wear shorts”
3:13 3:23
Medium well ? Needs to be Medium rare.
Hamburger ;)
Donnie the most non optimistic dude ever
Why the conversion to outboards, 1 mercruiser could do the same job as those 2 outboards
Lower units are crap , and draw too much water ! OB are the way
I'm not sure Donny loves his job.
Plus one inch stainless steel
Plate would work to
And how much would that weigh ?
Learn a lot from these guys Canadian boat
Mechanics are not that good
TOO MUCH ENGINES! YOU ONLY NEED ONE 300 HORSE!
I just started watch Born Again Boating a few months ago. It seems to me that the owner spent a lot on the boat, but not enough on the bracket. Too much money, not enough common sense.
Looks Like alot of money to be spent to fix an old boat. Money pit!
Just junk the boat. Pull that $80k in engines, pull the radio, and put that nice new equipment on a hull designed right
Huge engineering fail.