Challenges in Flipping a 20′ Speed Boat: Tips & Tricks

First Turn – July 2023 to Right Side Up

The construction of this 20′ speed boat started around January 2023 and by July the cross frames were connected with the keel, long stringers, and the hull planks on the bottom. It probably weighed 400 pounds and was a fairly easy job for a dozen relatives and friends to turn. We used two heavy nylon rope loops held by 2 x 4s, screwed to the ceiling joists to support the weight. It just took a little muscle to settle it on to the custom cradles made specially to fit the bottom.

Then, I went ahead with some interior work: mounting spaces for gas tank and battery, floor parts, seat framework, and top trim lines. It was ready to turn again.

Second Turn – February 2024 to Upside Down

For this turn, we added a couple of 8:1 Block and Tackle pulleys and some extra rope loops to help rotate the added weight, which I estimate was then around 600 pounds. Andrew Alger and Jeff Margush are studying the situation.

The pulleys barely did the job, and required a fair bit of supplemental muscle from all, Steve Rimes and Todd Lederman, among others, below.

Here is the satisfied crew that got it done.

With the boat upside down, I added a second plywood layer to the bottom, and fit the side hull planks. Knowing the trouble we had with the last turn, and that it was heavier now, Andrew Alger engineered a new system of four posts and winches to carry to load.

Third Turn – April 2024 Back to Right Side Up

For the new process, I made four posts which rested on the floor, and were temporarily screwed to a mount plate at the ceiling joists. They had blue plastic covers from table placemats, to reduce sliding friction of the strap across the top. The winches were bolted on at a comfortable working height.

The boat was on fairly high cradles, and the system worked quite well, turning the 20′ wooden speed boat back to right side up with only a few people helping.

After that, I built out the stern extensions at the back, finished the side planks and added more interior framework. This added more weight than we anticipated. Jeff Margush adds his thoughts . . .

Fourth Turn Attempt -Failed Try to Upside Down – August 2024

Then it was time to flip it upside down again. This time just three of us, Andrew, Jeff and I tried to make the turn. My first impression was that the winch handles seemed more difficult to rotate than how I remembered from before.

On the first try with the post assembly, I just put plastic strips across the post tops to help reduce friction for the nylon strap to slide. It had worked well as we were rotating a side down, with the center of gravity going down also.

But, this time, pulling the boat upward, the orange strap got really tight, pulled the blue plastic strip off and wedged itself between the post and the side guide.

The boat was now a couple hundred more pounds heavier, and the extra force required to the winch handles, pulled them out of alignment. That folded the strap, increasing friction there as well.

In addition, when we tried to get the boat lifted on one side, the low center of gravity caused the boat to resist rotation and made the boat slip on the straps.

We did get the left side rotated up about 1/3 of the way, and then turning the cranks got so hard we had to stop the attempt. We reversed and gently let the boat down to the floor.

Note: the back right post is already removed after the failed attempt and the boat is peacefully resting on the floor.

Fifth Turn Attempt – 2nd Failed Try to Upside Down– September 2024

To improve the system, Andrew made some heavy duty rollers, with large washers welded to the metal cylinders, spinning on 1/2″ bolts. The flanges helped to prevent the strap from getting caught on the side of the post, and the metal cylinder turned so freely as to almost eliminate the friction.

However, the weight of the boat at this point still overwhelmed the capacity of the winches and straps. Also, the boat kept slipping when we tried to raise one side, and it look like a risk of falling over too fast if we did get it rotated past the vertical position.

There was a little head scratching before we quit this attempt and lowered it to the floor.

Sixth Turn Attempt – Successful 3rd Try to Upside Down September 2024

Once again, Andrew helped to improve the turn system, and suggested new heavier duty winches. They also had an improved gear ratio of 8:1 which made turning them easier. This time, instead of just having the strap across the bottom, I also fully wrapped the strap all the way around the boat, which helped reduce slipping.

Below shows the tweaking needed to avoid hitting a light or dragging hard on the floor, but this time we succeeded in getting the boat turned over.

On the short legs again, it is now ready for final fiberglass and epoxy coating on the bottom, and then primer and paint. This is hopefully the last time it will ever be upside down.

Below is the response from friend David Beale when hearing about the delays:

“I’m guessing difficulties in flipping the boat during the build process probably never made it into your time calculations when starting off on the build – which would make it similar to so many of my own projects.    Moving something of that size is clearly not easy!”

True enough. David speaks from experience as he is an adventurer extraordinaire. Besides mountain and wilderness exploration, he built and worked a beautiful 19th century farm without fossil fuels for a decade and a half. You can read about some of his amazing adventures on https://haymanfarm.blogspot.com/

Next up is finishing the bottom of the hull with epoxy over fiberglass fabric to prepare for painting. . .

Boat Turning Redefined

In the nearly five years of having a couple of boats in progress, the times to turn it over have occasionally gone smoothly, with a few scary moments. This was the first turn of the smaller boat when the framework was lightest. I just got some heavy duty nylon rope and attached some T-bar 2 x 4s to the rafters to hang it.

Light weight first boat turn

The next time had more oops and inefficiency spreading of the lifting power. The ropes did not behave as well as expected and a little floor bump occurred . . .

Heavier and more muscle needed.

But apparently all’s well that ends well.

Getting the boat out of the basement was a pretty tight challenge, but finally made it.

A couple of inches top and bottom.

And eventually it floated.

Les Chenoix Boat Show

The second boat, currently under construction is larger and made the first turn with a bit more muscle and finesse. We just about took out the light at one point.

Second boat, more weight and muscle, narrow miss.

The next turn got more complicated with a tangle of ropes that were difficult to adjust, and left a few guys holding the proverbial bag. This time we had trouble clearing the heat duct because the front pulley system failed and left it hanging down.

Front Pulley broken. . .

So, in the garden, look for help from someone with green thumbs. In the shop, look the guy in the green gloves, like Andrew Alger NEI above. NEI may not be a Purdue degree, but It stands for Natural Engineering Intelligence, and he has solved more than a few of our “make-something-work” crises.

Andrew came up with a new plan, as the boat needs a few more turns, and is getting heavier all the time. He suggested getting four reversible winches, to hang on support poles, with heavy duty nylon strap. I dutifully followed his plan and voila’ it became quite easy.

Two of us turned the winches to pull up on one side, and the other two released the strap to lower. A few adjustments of height and soon it was sitting right side up on the cradles.

All smiles for the success!

But for the two minute trip of the whole drama, check out the link below.

https://drive.google.com/file/d/1XqXfoPG8oKQIbxiQyNWPUzMbbIv_okh-/view?usp=drivesdk

Upside Down Again

A year ago, the cross frames of the boat were being set upside down, and the longitudinal parts like the keel, the chine and the sheer lines were added. Then the marine grade plywood was made into tongue and groove planks and installed on the hull bottom. 

When that was finished, it got flipped up right so I could work through the sides to build more floor support, the transom and seat framework. Just recently, that construction got pretty close to done, so it was time to turn it again.  The boat is heavier than the last time we rotated it, and with less parts to grab, I thought more ropes might help. . .

Hanging From the Ropes

Below, you can see Steve Rimes and Andrew Alger on the two pulley systems, with Don Florea, doing the quality control inspection. There are Dustin Friend and Kenyon Lederman holding ropes while Dave Ziegler, with the white hat, inspects the clearance to remove the cradle. Not sure how much I am not helping.

Steve supplies the lift on the 8:1 pulley system, while Todd Lederman, Kenyon and all the rest, help start the rotation.

Starting Rotation

On the front end, Jeff Margush has just pulled out the cradle that the boat had been sitting on before. Andrew Alger handles the pulley ropes, with another dozen guys manning their stations.

Busted Rope

It was all good until the rope connection at the ceiling for the front pulley gave way. The T-shaped 2 x 4’s screwed to the ceiling joists held firm, so the rest of the ropes were still useful. It just took a bit more muscle. Below are Don Florea, Chris Friend, Mike Friend, David Veale, Doug Martin, Kenyon Lederman and others.

Ceiling Clearance?

It was too late to turn back, and with the many ropes holding up or giving slow braking, we are half way there. At this particular moment, the left side needed to go down a bit for the right to clear the heat register. It had worked out with a tape measure and on paper!

Andrew Alger and Jeff Margush are getting it figured out.

As one guy said, “This is a pretty small shop for a boat this big!” We were always looking out to keep it off the floor and still miss the heat vent and the light fixture. In this case we had to scoot it left and restart the rotation. 

Halfway there

David Veale, Doug Martin, Jeff Margush, Andrew Alger and and Dave Ziegler lift and turn.

Eventually, the boat came to a soft landing, and the ropes were released from their loads. The new base was intentionally positioned low enough to easily work all of the way across the bottom. This last upside down phase will be for final fairing, adding glass fabric embedded in epoxy, adding primer, fine sanding and final paint. 

Sounds simple enough. The paint expert, Dustin Friend, is third from right and has an “I wonder” smile on his face. There might be some trouble shooting required. Dustin, Chris Mike black hat

Thanks to Don Florea, Todd Penner, Dustin Friend, Josiah Penner, Chris Friend, Andrew Alger, _______, Jeff Margush, Mike Friend, David Veale above.

Thanks also to Bob Friend (behind me), Todd Lederman, Steve Rimes, Kenyon Lederman, Dave Ziegler (White hat), and Doug Martin, below.