Question about coaming placement

[oldpropfan]

Not exactly sure where to center coaming forward/aft on boat, any suggestions as to best location?

 

This is with coaming centered pretty much on the top of each frame. Forward the contact point is between the lashings on the center stringer, aft it contacts the stringer just aft of the lashings.

 

This is with the coaming forward of the lashings on the aft frame, it seems to me like too much of the forward frame and stringer protrude into the cockpit.

 

 

This is with the coaming aft of the lashings on the forward frame, not as much frame protrusion. The backband or seatback, depending on which way my son decides to go with the seat type, should prevent getting hit by the stringer ends (they also need to be trimmed, but first we have to get the coaming located).

 

 

The coaming isn't pretty, I know, but it's only a test piece to check size as I am thinking about going with a more keyhole style coaming for my Nimrod that is also shorter in length. Finally found a local source for BB and the coaming will be cut out of that. Have to tell my son he might want to redo the floors also, not exactly the best looking pieces of ply from the extras pile.

 

Thanks for any help,

 

Al

[Kudzu]

Which boat is this? It looks like the frame spacing is off a little. I would like to check my dimensions on the plans vs. your boat. Looks like one of us made a mistake.

[oldpropfan]

Sorry, should have mentioned it's the Shad. Just checked the measurements and from the aft face of 6'11" to the aft face of 9'9" is 34" exactly.

[Kudzu]

I just checked the CAD drawing and inside of the coaming scales 34" also.  Measure you coaming and see if it is 34" inside.   If it is then I would guess your frame(s) were leaning. Meaning they were not straight up and down.

 

If they are both 34", and since the coaming is at an angle on top of the frame it should fit a whole lot closer than that. All I can say for sure is something is not right, but I can't tell what. So double check everything.

 

PS. You are seeing why I don't recommend pine/construction grade plywood. I am not being critical of your boat either! Its just hard to make it look good. It is plenty durable but it splinters, chips and I hate working with it. 

[oldpropfan]

Could I impose on you or any of the other Shad builders to post pictures of the front and back of the cockpit so I

can see what it should look like? In the meantime I'll see if can get the frame back on the strongback and check for lean.

Thanks,

Al