catamaran rowboat with sliding seat

[sander]

Hallo!

I would like to build a rowboat out of 2 11 cm diameter pbc tube.

So i need an advice for placing a sliding seat, foodrest, and ore holders.

My biggest question is how long there shall be between the ore holders, i am 195cm, and want something wide with long oars, for maximum power.

Thanks in adwance

sander

[sander]

Ok i have done a lot of reserch, and found out that 162 cm between the oar locks works great with 288 cm hatchet-shaped oars, with 89 cm inboard.

I might use aprox 20 cm diameter pvc tube instead, depends on the length.
Is it right understood that 1 liter of air per kg would keep me floating?

Lets say that the overall weight of the boat including me is 120 kg how many extra cm3 would i then prefer?

I think 162 cm between the pontoons would be nice, that way i can put the oar locks rigth on top of the pontoons, but how long should it then be?

How high above the waterline should i sit?

[Guest625101138]

Something to compare:
http://www.rocat.co.uk/
http://www.boatdesign.net/forums/att...8&d=1217293027

Rick W