03-12-2011: Hatch flanges continued.

The hatch flanges are now done. When the hatches are in place they are flush with the deck surface. I really like the look of it.

I have placed pieces of the rubber gasket to hold the hatch in the correct hight.

To hold the hatches I plan to use the moby hatch lock.
Something like this one: http://www.kayakforum.com/cgi-bin/Building/index.cgi/md/read/id/170635/sbj/other-hatch-hold-down-system-pic/
or this: http://www.westcoastpaddler.com/community/viewtopic.php?f=7&t=3517&start=100
or this: http://www.byg-kajak.dk/moby.htm
I have been thinking....
To make the grip of the moby's stronger I could:
1) Use a more powerfull bungee cord.
2) Increase the diameter of the "moby head", i.e. increase the momentum arm 1.
3) Decrease the arm length, i.e. decrease momentum arm 2.

I think I will have to make some kind of mashup to test before deciding on the final dimensions.