As always, I am early. I got to Triana put in at around 8 AM. I do this for two reasons; primarily I want to put the boat in the water and let it set for at least thirty minutes before I get in it, to check and see if the polyurethane has complete coverage, and I am habitually and retentively early, just a habit of mine.
The empty Puntyak sat perfectly level in the water at about 1/2” less water line then planned. So that is a good thing. Draft empty…less then 1”. After 30 minutes of sitting on the water, being rocked and waved by speed boaters going by……zero water inside the boat.
Fat Boy Test
Not a creaky noise one. So the fuselage frame structure works just fine. The draft was actually less than predicted, which is a good thing. I designed it for a 4” draft at 330 pound displacement. The actual draft with me in the boat and limited equipment….about 3 1/2”, which is just about right for the combined weight of the Puntyak and me.
I didn’t take the side to side rocking to extremes because I was alone on the creek (No one came, I feel so unloved :P). I did rock it side to side to the distance of what I would call normal heel, approximately 10-15 degrees, It popped right back flat. So that aspect is good.
The stability across minor wake waves was rock solid, fore to aft and side to side. But they were minor wake, 6-8” at most.
The Puntyak definitely needs to have either a rudder or a skeg. The slightest breeze will turn it. On the other hand, it makes it very easy to make really tight turns. Definitely needs linear assistance.
Zero to moving. Hmm, seems that it takes a fair amount of push to get it started, but once it is started it glides along with minimal effort.
Once up to a fair speed, there is a bubble cavitation under the fore slope and a little bit of wake slapping. Solution…give the fore slope a bit of “V” section.
Need more padding, just under the bum, but actually on the sides and where the feet hit, damn framing was cutting into my knees and heels.
The kayak paddle that I was using is not suitable for use in the Puntyak. All of the water that ended up in the boat was paddle drip. In addition, it is a finger banger, a suitable paddle needs to have a 30-32” loom and wider blades, possible Hawaiian leaf blades.
I am actually fairly impressed with the overall design and performance. Obviously as a prototype there are some issues, but they are all minor.
I will post the videos as soon as I am done editing and uploading them.