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Thread: Thoughts of adding strakes
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04-29-2015, 07:27 PM #61
I had to head out for work for a bit, I think building the pad the way I have started it will offer enough lift up front that may get the whale to release. Last year when I was getting pics of the boat running there was nothing I could do to get lifted off the chines. The hull has nearly no hook and getting a good look at the underside today I am really thinking the shape of the bow is really holding itself down. Absolutely great for a ski boat, Flat and smooth. I am looking forward to these changes to see how the hull responds.
I am planning more setback, it will be a bit later on though. Kind of one step at a time although I am doing hull and some motor at this venture.Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-05-2015, 05:12 PM #62
So here we go, Is the first cut the deepest?
Here I have started removing the keel,
I did find the stringer to be wet, something I have feared since after rebuilding the structure and not refinishing the outside I was finding that water was coming in from somewhere. I still do not know where but it was getting into the foamed in area under the floor.
Luckily it has been sunny and actually hot here the past few days so I have let the sun at the hull allowing the moisture out.
Today with not detecting any more moisture It is time to move forwards again.
I have mixed a slurry of resin, loose and runny at first then a drier Microballoon mix that I will later grind into.
The way I am approaching this since I am forced to work from the outside only is to prep, grind and layup two sections, then cut out the last of the keel and finish the layup. This way the hull remains stable during this work.
Later on I will finish rough shaping the wood core for the pad, bond these in place, final shape them then glass them.Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-05-2015, 06:00 PM #63
OK now you have my attention...keep us updated...
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05-05-2015, 06:56 PM #64Screaming And Flying!
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This is interesting, the end result will be faster higher riding hull. Cool . How are the blackflies?
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05-05-2015, 07:18 PM #65
No flies here yet, last of our snow is just melting away the past few days.
It will be interesting just how much this work will offer performance wise. Should be a fair amount since these hulls were designed to stick to the water part, of being a good ski boat and not a performance hull.Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-07-2015, 12:26 PM #66
I thought I would be laying up glass today till I realized I am out of release film, Oh well next week I start. If it were not for the multiple layups involved I would be going for it.
Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-08-2015, 07:11 PM #67Screaming And Flying!
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Just got on the water, first time this year. Very thick rotten lake ice still floating around , flies just starting.
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05-09-2015, 12:01 PM #68
Prep work is making headway today, I am prepping to fill cracks and blisters. Here is some stress cracking up front from when the boat was run with rotten structure, there is a fair bit of this.
Here is the other side that I have ground the cracks out of the gelcoat.
Back near the stern some cracks ground out and the hook sanded off,
Some more blisters that had cracks running between them,
And on the transom some drilled holes and cracks, I had filled the holes with 4000 sealant but now to do a better job.
And for me, the big win, I found the water leak, I think. Till I was grinding on this the passage was not apparent.
I will be grinding this a bit further before filling but it will be rewarding to not have water coming in when the boat is tied up overnight.Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-14-2015, 09:33 AM #69
The weather is letting me work on this again although it was below freezing this morning. I have finished prepping for the first layups along the keel. With luck this afternoon I will be able to cut and prep the last short section so tomorrow I can get further on glass work before the next rains come.
I have also filled the edges of the strakes and rough sanded them, these should be nice and sharp when done.
Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-14-2015, 04:06 PM #70
Frustrations today, It was cold most all morning which was fine for suiting up for grinding but it delayed me from starting layups. But once the fabric was cut all seemed good. Well until I was doing the second section of laying in two plys of 1700 when I noticed the release fabric was wrinkling up.
Damn, not a big thing but it compromises the simplicity for when I am laying in the next 6 plys.
Anyways I cut off the last section of keel and filled under the stringer. It is late enough that this will not be ready to grind today so I am not as far along as I hoped. I have ordered in 10 more yards of the peel ply I have been working with for the last 33 years, I should have stayed with what I am used to instead of buying new stuff that cost less. Material cost should not direct a project.
But here is the last section filled,
And a view from the side with no keel anymore,
By eye you can now really see the whale in the front of the running surface.My eyes do not see it in the picture here. Next week I will be shaping the core for the pad to blend into this.Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-15-2015, 05:04 AM #71
Another frosty morning, not sure how quick I will get going on this today.
Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-15-2015, 05:12 AM #72
Great stuff Charlie! Thanks for taking the time to share your project with us. Right up my ally since I have been wantin to add a pad to my MFG skiff one of these winters. Keep up the good work! Gary
"12" Super Lite Tunnel (11') "88" 25 Yammy twin carb "BANANA SPLIT"
"77" Hydrostream Viper "87" 140 Rude heavy modded w/15" mid, Bobs nose and lwp "DANGER ZONE"
"72" Checkmate MX-13 "80" 75 Rude w/15"mid and Nitro Lu (to be restored)
"Too much is never enough" Keith Richards " Dreams become reality via hard work and perseverance" G.A.Carbonneau
"This coming from an old man that strapped two bananas together, hung a motor on it and calls it a boat" XstreamVking
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05-15-2015, 05:41 AM #73
Thank you Gary, Your MFG should not be all that difficult to add a pad to. If I recall they are essentially a flat bottom with a steep Vee in the center and the two outer chines. Guess they are not chines when the project downward. Looks like it would be the surface prep, selecting and shaping the core then going for it. Probably would be an interesting boat to drive.
Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull
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05-15-2015, 05:52 AM #74
Your recall is right on! The boat is already a handfull with my modded 25 (boat weights 140lbs and was rated for 10hp!) and was designed to be a cartopper! I have already braced the transom and the gunnels(to stop the flappin) and I thought the pad would take her to the next level. Gary
"12" Super Lite Tunnel (11') "88" 25 Yammy twin carb "BANANA SPLIT"
"77" Hydrostream Viper "87" 140 Rude heavy modded w/15" mid, Bobs nose and lwp "DANGER ZONE"
"72" Checkmate MX-13 "80" 75 Rude w/15"mid and Nitro Lu (to be restored)
"Too much is never enough" Keith Richards " Dreams become reality via hard work and perseverance" G.A.Carbonneau
"This coming from an old man that strapped two bananas together, hung a motor on it and calls it a boat" XstreamVking
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05-15-2015, 06:01 AM #75
The pad will get the flat bottom off the water, should make a big difference. I wonder if it would be more stable with smaller pads on the outer Vees to reduce the chance of digging in. One step at a time though. Been a long time since I have been in one of them.
Regards,
Charlie North
If it ain't broke, modify it.
80 21' Superboat with Yamaha 225 Excel power
76 Glastron to be powered by a 6.2 L92 with surface drive
87 Glastron CVX20 Hull