Jump to content
Introducing MalwareBytes 3.0 (affiliate link)
Sign in to follow this  
toddn.robinson

WARNING TO LARGE PADDLERS

Recommended Posts

Im fat. I acknowledge this. But at 6'3", 280 lbs, with a 40 inch waist, I fit into a  Vardo. The boat floated and paddled like a dream. I loved it. But I have had her out 4 times and have now cracked three different frames of a build following Jeff's plans. I do NOT fault the plans at all. I used what was sold to me as "Marine Plywood" from a boat building specialty supplier. Obviously there is something wrong with the plywood.  My warning is this:  if your ply is not exactly as described by Jeff, USE A HEAVIER GAUGE or WAIT UNTIL YOU CAN GET WHAT HE SPECIFIES. I have wasted months of effort and hundreds of dollars in materials building a boat I cannot paddle. I'm heartbroken. 

Share this post


Link to post
Share on other sites

I'm going to strip out the hardware, and try to sell it. I wanted a skin on frame boat SO much. Not sure if I should build with 3/4 ply or just bite the bullet and buy a plastic boat. 

Share this post


Link to post
Share on other sites
Kudzu    108

I sure hate to hear this and I wish you were close enough I could see the boat and tell for sure what was going on. I can only guess but I have not had anyone have any experience like this. We have never had a report of multiple broken frames. We have had a couple of people dropping them off the roof of the car and crack a frame.

 

I had the frame that supports the rear of the coaming get fatigued after a couple of years regualr use. I often sit on the back deck and I had a couple of the Douglas Fir plywoods to start to sag and  eventually collapse. I don't think the Baltic Birch would do that but that is when I added the center brace just to be sure..  I really believe it is just bad plywood but I want proof. 

 

I hate to see you give up and I want you in a one of my boats.  While I don't think you can salvage the frame or skin, you can reuse the stringers, foot rests etc. in the boat.  If you had a set of frames would you be willing to try again?  I would like to know for sure it if was just bad plywood.  Watch your email.

Share this post


Link to post
Share on other sites
Hirilonde    171
On 8/6/2017 at 4:46 PM, toddn.robinson said:

 I used what was sold to me as "Marine Plywood" from a boat building specialty supplier. Obviously there is something wrong with the plywood.  

 

Sorry about your misfortune, but the plywood is probably exactly what is was sold as.  The designation "marine" simply means that the glue is designed to withstand prolonged submersion and the wood had been treated for rot resistance. If it is marine Fir plywood it is structurally no better than CD ext. plywood sold as sheathing.  The designation marine in no way addresses the structural characteristics required to build a frame for a SOF kayak.  Actually, no plywood is designed for such use.  Baltic Birch cabinet grade ply and BS 1088 plys of several species do however work very well.  Like the material Jeff sells for skinning, none of these are designed for SOF, but much trial and error shows they work well. These plywoods work well  because of the number of layers and the integrity of them (lack of voids, lack of knots, lack of open seems, etc.)

 

 I hope you try again.

  • Like 1

Share this post


Link to post
Share on other sites
jshaley    0

Todd,

 

You graciously offered to show me your Vardo. I am still hoping to connect with you (got distracted paddling).

 

Pittsford Lumber is local to me (no affiliation) and offers Baltic Birch. I would be happy to run one of these 5x5's out to you for what they charge me. So save on shipping. Your existing frames would make great patterns and as mentioned you have the stringers. Heck, if I buy the Vardo plans I may even be interested in your frames as patterns too - although my need for speed has gone away somewhat.

 

Anyways, just trying to help someone who offered to help me.

 

 

Share this post


Link to post
Share on other sites
Kudzu    108

I have been in contact with Todd and I am going to get him fixed up with a frame kit. He is supposed to send me one of the old frames so I can do a little destructive testing. I am sure it was the plywood but i want to know for sure that is what it was.  There is no reason for his weight to have been an issue with the right plywood.

 

Share this post


Link to post
Share on other sites
Barton    0
On 8/9/2017 at 1:05 PM, Kudzu said:

 I am sure it was the plywood but i want to know for sure that is what it was.  There is no reason for his weight to have been an issue with the right plywood.

 

I agree, Jeff.  The pictures Todd showed in his previous posts showed a plywood that isn't what I would call marine ply.  I will report on my Vardo with 1/2 inch true Baltic birch when I get her done.  Please keep us posted with your findings on Todd's plywood.

Share this post


Link to post
Share on other sites
Kudzu    108

Keep in mind that Marine grade has nothing to do with strength of the plywood.

 

As much as I hate it, US plywood is typically garbage. It is one thing I always buy imported.

  • Like 1

Share this post


Link to post
Share on other sites
benhardt57    9

 

9 hours ago, Kudzu said:

As much as I hate it, US plywood is typically garbage. 

 

To be fair though, if there was a higher demand for it the US marketplace would provide.

Share this post


Link to post
Share on other sites
Rich D    6

I use what is sold as 'marine ply' from Menards. Seems a little better quality than the typical stuff they have. But since I always sit on the back deck before sliding into position (long legs) I always double up the deck side of that cross section for extra strength. I also add a couple of short deck stringers reaching from the rear of the cockpit to the next aft cross section. May not be needed but it gives me peace of mind. 

Share this post


Link to post
Share on other sites
Action Tiger    139
On 8/9/2017 at 10:05 AM, Kudzu said:

I have been in contact with Todd and I am going to get him fixed up with a frame kit. He is supposed to send me one of the old frames so I can do a little destructive testing. I am sure it was the plywood but i want to know for sure that is what it was.  There is no reason for his weight to have been an issue with the right plywood.

 

Because you are the coolest guy ever... :)

 

Peace,

Robert

Share this post


Link to post
Share on other sites
woodman    34

Yea I built a multichine hull with open cockpit for a 250 lb. 6' 2" guy and it works great.....the baltic birch frames  is the strong point the cedar stringers  would be the week link.......has to be junk plywood.....

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

×