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10-26-2019, 07:37 AM #16
Great stuff!
The Ben Hur was a famous and popular design of the era.
Great progress so far.
I built and raced many similar boats for yrs, when I was 40 lbs lighter.
One early trick I learned in building them was to mount the structure to a flat, square, level, straight jig.
Built on saw horses or a unlevel surface, you will build in a “twist” to the hull which will greatly affect speed and performance.
You are building a “stressed skin” hull which mean the frame has no strength until the skin (plywood) is installed. You will glue up a pretzel and not even know it.
Love your power plant and outside the box thinking to get the short mid the hull needs.
Those Motors make great power and w/some set up and testing you should have a rocket on your hands.
The construction is a huge, fun part of the process but a well sorted, 100 lb hydro should be even more fun.
Ive been 120 in a 19’ boat and 65 in a 100 lb, 10’ hydro and for pure fun and sensation of speed...., can’t beat the hydro.
Once you learn how much you can change attitude of boat by shifting body weight/position it all changes.
Way cool and thanks for interjecting this thought process to the youngins.
Well done sir!
GaryLast edited by Instigator; 10-26-2019 at 07:52 AM.
I'd rather be competitive w/junk I built in my garage than win w/stuff I bought.
I refuse to allow common sense to interfere w/my boat buying decisions.
Checkmate 16' 140 Johnson
Hydrostream 17' Vector FrankenRude I
Laser 480 (?) 21' w/GT 200
Glastron Carlson Conquest w/XP 2.6
Glastron Carlson CVX 20 w/XP 2.6
24' Sonic w/twin 250 Johnsons
24' Sonic w/twin 250 HO Johnsons
19' STV River Rocket w/FrankenRude II
Allison XR 2002 w/Frankenrude II
Hydrostream 18' V-King w/Frankenrude II
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10-26-2019, 10:35 AM #17
PS, not sure if you’ve already decided how to attach skin (besides glue) but in my mind, the only way to do it is w/a narrow crown staple gun.
To weak to hammer nails and most places would bounce as well.I'd rather be competitive w/junk I built in my garage than win w/stuff I bought.
I refuse to allow common sense to interfere w/my boat buying decisions.
Checkmate 16' 140 Johnson
Hydrostream 17' Vector FrankenRude I
Laser 480 (?) 21' w/GT 200
Glastron Carlson Conquest w/XP 2.6
Glastron Carlson CVX 20 w/XP 2.6
24' Sonic w/twin 250 Johnsons
24' Sonic w/twin 250 HO Johnsons
19' STV River Rocket w/FrankenRude II
Allison XR 2002 w/Frankenrude II
Hydrostream 18' V-King w/Frankenrude II
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Seanj85 liked this post
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10-26-2019, 03:04 PM #185000 RPM
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Instigator liked this post
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10-26-2019, 03:13 PM #195000 RPM
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Instigator, thank you so much for tips and the reply. We would love to mount it to a permanent jig but unfortunetly we dont have a lot of room in the shop. We are building it behind the table saw, and whenever we need to slice up an 8 foot board, the boat has to be moved. What we have been doing is shimming the saw horses level before fastening ribs and battens. I hope it stays straight, so far it seems to be working. I really hope we dont wind up with a pretzel. Thank you for the tips on using a pneumatic stapler, we will do that when attaching the skin.
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10-26-2019, 03:26 PM #205000 RPM
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Haven"t posted progress in a while so I figured I'd share some news. I keep telling myself to take more pics, but I wind up getting distracted easily as I'm running the hydro build (advanced materials processing) during the same period as a standard materials processing class. We are having a lot of fun, ribs are all attached to girders, center battens are now down, and sponsons are in the process of being cut. The sponsons need a little tweaking to fit perfect but with a little love we will get it right. Before attaching anything else on the bottom we are going to cut the transom out and get it attached, as everything sort of attaches it's way back there.
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10-26-2019, 03:53 PM #21
Lookin good. I'll bet those kids are having a blast.
RockTeam Junk
No sparkling wiggles in here, only dump truck grinches.
"Screamin Heathen"
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Instigator, Seanj85 liked this post
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10-31-2019, 02:57 PM #225000 RPM
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So we hit a little bit of a snag today. We glued up a ridiculously strong transom and when installing it we noticed the last rib was attached 3/16" sideways. I remember the notch in this girder was the only one widened to accommodate the larger rib. Apparently the students widened it a bit too much and glued the last rib crooked as a politician. After some measuring and leveling we determined that the other ribs were straight. Our solution: glue the transom in square.. which looks a bit off but is not. Hopefully this is the only setback we are dealt, it should not effect performance as the girders are still square to the ribs and identical to stbd and port sides. It's just a little disappointing as everything was coming out so nice.
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11-20-2019, 03:00 PM #235000 RPM
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It has been a while since I posted, as the whole process has sort of slowed down. We are at a point where we are shaping different parts of the boat to fit perfectly and preparing girders, ribs and battens for the plywood skin. I know it does not look like we have made a lot of progress but with each step we have had to troubleshoot and overcome some small problems. There are gaps in the plans where we have had to sort of make the best guess we can to move forward and have had several small victories as well as setbacks. Shaping of battens, rub rail and sponsons has been done with belt sander and block planes. This takes time as getting students setup for the period can sometimes take 20 minutes leaving us with 15 minutes to work and 5 mins for cleanup.
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Instigator thanked for this post
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11-20-2019, 06:12 PM #24
Rome wasn't built in a day. Slow, steady progress is what these kids need to see. Teaches patience in an instant world.
RockTeam Junk
No sparkling wiggles in here, only dump truck grinches.
"Screamin Heathen"
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11-20-2019, 07:37 PM #25
Good stuff Sean.
I think, every boat I’ve built from plans, including the one I finished a yr ago, had gaps in the plans.
Not that big of deal if your used to it and or have shop space for it but, a teacher/instructor/mentor w/a class to teach and schedule dictated to you..., good luck.
Based on the above, make the parts fit, project progress, class advance and finish your boat.
Good stuff and please continue on.
You rock.I'd rather be competitive w/junk I built in my garage than win w/stuff I bought.
I refuse to allow common sense to interfere w/my boat buying decisions.
Checkmate 16' 140 Johnson
Hydrostream 17' Vector FrankenRude I
Laser 480 (?) 21' w/GT 200
Glastron Carlson Conquest w/XP 2.6
Glastron Carlson CVX 20 w/XP 2.6
24' Sonic w/twin 250 Johnsons
24' Sonic w/twin 250 HO Johnsons
19' STV River Rocket w/FrankenRude II
Allison XR 2002 w/Frankenrude II
Hydrostream 18' V-King w/Frankenrude II
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11-20-2019, 08:12 PM #26'78 Hydrostream Viking/'98 225 ProMax
Restoration: https://www.screamandfly.com/showthr...Viking-rebuild
Pictures: https://www.flickr.com/photos/152974...57708863869223
Videos: https://www.youtube.com/tnels
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01-10-2020, 03:26 PM #275000 RPM
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Sorry I havent posted in a while, things have been a bit crazy on my end. My wife gave birth to a beautiful baby boy in December (our first). After having him home for a few days he developed a little cough, which turned into an inability to breathe. We brought him into a hospital and the doctors informed us he had gotten the RSV virus, and had an oxygen saturation in the low 80s. 13 exhausting days in the hospital later and we are finally home. Unfortunately I had to take some time off work and the boat build got put on hold for a bit.
So as far as the boat goes, we are almost done applying the meranti ply on the bottom, we are shooting it in with galvanized crown staples and titebond 3, then going over spots with countersunk stainless screws. We are looking pretty level overall and am I happy with the progress so far. If you look, you can see the air trap on the bottom which looks like an S -curve. It's supposed to generate lift and reduce drag in the water. Some spots need additional sanding/ filling/ fairing but we are looking pretty good and plan on running a couple strips of fiberglass over the important plywood seams.
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01-10-2020, 04:08 PM #28
Wow!
Thank god your baby is healthy.
Yikes.
Boat looks great.I'd rather be competitive w/junk I built in my garage than win w/stuff I bought.
I refuse to allow common sense to interfere w/my boat buying decisions.
Checkmate 16' 140 Johnson
Hydrostream 17' Vector FrankenRude I
Laser 480 (?) 21' w/GT 200
Glastron Carlson Conquest w/XP 2.6
Glastron Carlson CVX 20 w/XP 2.6
24' Sonic w/twin 250 Johnsons
24' Sonic w/twin 250 HO Johnsons
19' STV River Rocket w/FrankenRude II
Allison XR 2002 w/Frankenrude II
Hydrostream 18' V-King w/Frankenrude II
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Seanj85 liked this post
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01-10-2020, 04:53 PM #29
Congrats on being a Daddy! That's Huge! I'm a new dad as well, and love seeing little wooden boat projects like this.
Sure is a neat little vessel.
Prior replies were correct about the stressed skin style boats - you can see in my pictures that I had made a jig to hold my tunnel sides straight and level when I was building my boat. This is what they were talking about.
I don't think it's necessary in your case, being a smaller fun vessel, but regardless it's still coming out great!
1) 1995 14' Bayliner Restoration <--Click
2) Home-Made Tunnel-Boat Project <--Click
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01-10-2020, 07:05 PM #30
Wow. That is beautiful. Nice boat too. Congrats Dad.
RockTeam Junk
No sparkling wiggles in here, only dump truck grinches.
"Screamin Heathen"
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Seanj85 liked this post
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