Started Fairing the hull(pics)

C

charlie foulds

Well-known member
Flipped
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Rounded all the edges
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P7200150.jpg
Filled all seams and holes
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P7200161.jpg
Now I will sand and do it all one more time. Then I will be ready for Kevlar
 
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Charlie... very very nice work...

BTW, You and I built our boats in the same tent. On hot days, I removed the end curtain from the peak top down about 4 feet... it released the hot air which builds up in those things... you've probably figured that out already.

Thanks for posting.
 
Thanks Andrew, With the one end open and the fan on high,their seems to be no difference in the temp from the outside to the inside.
 
Yes. May, in some spots, take two coats to get a full seal on coarse grain. Will help anywhere cloth is going to be laid with wet out.

I think she looks great. I have a question. The rad. is necessary for the kevlar to go around the corners. Will you build back up a more square edge on the transom and motor well edges with filler putty to keep the water from causing suction at the hull edge when planning?
Again, boat looks sweet and I can only guess how much work it is to be grinding in the heat of summer.
 
Yes. May, in some spots, take two coats to get a full seal on coarse grain. Will help anywhere cloth is going to be laid with wet out.

I think she looks great. I have a question. The rad. is necessary for the kevlar to go around the corners. Will you build back up a more square edge on the transom and motor well edges with filler putty to keep the water from causing suction at the hull edge when planning?
Again, boat looks sweet and I can only guess how much work it is to be grinding in the heat of summer.
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I am not sure what you mean. Have I done something wrong????????????
 
Someone please feel free to correct me if I'm wrong. I think what he is talking about with the rounding of the edges is that you needed to get them rounded so that the kevlar will make the corner, but you might want to think about building up that corner again on the transom edge. The reason is that when you come to plane the water will want to travel up the curve of the transom instead of skimming off a sharp corner. I don't know the physics behind it but it makes sense. I believe I read a recent thread on this from Andrew. I don't know how to link to another thread but you can search "Eric P. A hint you gave me paid off..." Maybe he can shed some more light on the subject. You haven't done anything wrong, you just have to build the edge back up or add a wedge. No need to panic!
 
Boat and the work look great.
I was just curious if you would try to "Square off the corners after the cloth was done to help the water get a clean break from the hull when up on plane, esp in the box area.
You have to round the edges esp with the kevlar to get it to lay around the corner when wetting it out.
I did not mean to cause any worry on your part and as I said I think the work looks great.
I think Andrew or Eric had a post where the, "Square Edge" idea had been talked about and that is what I was thinking of when I asked.
Bob.
 
Charlie

I'm impressed with your work. In fact the entire class of 2008 so far is proving to be quite capable builders. Keep the pics coming.
 
Charlie

I just saw the discussion about rounding the corners. You are on the right track. The rounded edges are needed in order for the cloth to bend around them and maintain strength and not crack under stress or abrasion. After the cloth is laid you can go back and rebuild the edges with thickened epoxy making a hard square edge. They help prevent water from going around and back up the sides of all the trailing edges. After I did mine this way there was a noticable reduction in splashing and a clean lay down of water behind the boat, aka less froth. You are on the right track, you just have another step to take care of but it's small potatoes.
 
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Yeah Bob B and Eric are right on. Squaring off the edges after the boat is on the trailer is a huge pain. Now is the time to do it.

So, in summary... round edges, do glass, add edges back. Otherwise, the water comes shooting up due to some law of physics that is over my head... and the water somehow finds its way onto your passenger's back - not good.
 
Charlie,

Great looking boat. You are making great progress.

You mentioned using Kevlar. What is your thought process for using Kevlar vs regular glass cloth? I'll be interested in how it wets out as that has been one of the negatives in using Kevlar, as well as the expense of course. In my case, reg glass cloth has worked just fine and after 4 years I have no issues that tell me to use Kevlar in the next boat.

Nice job

Pete
 
Thanks Guys, Now I understand what you guys are saying. Finish Kevlar and glassing the hull and than square off all "trailing" edges. Would this be a good idea. Make some cuts in 3/8 with my skarffing attachment, cut them about 3" wide by however long and fillet them to the hull. Should I cover them with fiberglass or just fair in and epoxy??
 
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Charlie,

Great looking boat. You are making great progress.

You mentioned using Kevlar. What is your thought process for using Kevlar vs regular glass cloth? I'll be interested in how it wets out as that has been one of the negatives in using Kevlar, as well as the expense of course. In my case, reg glass cloth has worked just fine and after 4 years I have no issues that tell me to use Kevlar in the next boat..................................................................................................................Pete, I was just thinking that since I hunt very rocky areas at times a might need the added protection. I am a little nervous about working with the Kevlar it sounds like it may be very difficult to "get it right".

Nice job

Pete
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Yes, I do think it's expensive overkill... you have a light boat, you'll ride over stuff. But, I'm frequently wrong... speaking of which...

Charles... what's the deal with the hull center joint up about 1/3 of the boat (from the transom)... it looks a little lumpy from here, but, pics are very deceiving. Is your plan to put a deep keelson (3/4 - 1 inch?)

Again, it's probably the angle.

Thanks, A.
 
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