15' ROWER :
12" at side
I've built a fifteen foot version of ATHELAS for
a man in Oregon who wanted a lighter boat. He named her
HOJA ("leaf" in Spanish) because she feels so light in
ATHEY has all the same overall dimensions except
length. Her plank layout comes out very slightly
different, and she needs 5 rather than 3 frames.
However, the three middle planks are 4 vice 6 mm
plywood. These two changes subtract about 13 pounds,
making car-topping easier (and damaging a plank easier).
You could build her all of 6 mm sides and lose half the
Setting her up for only one rower, vice two will shed
another 4 pounds, She weighed only 65 pounds!
With one rower, ATHEY draws about 3-1/2 inches,
instead of 3-1/4, and obviously, has slightly less
ultimate load carrying capacity. But either boat will
carry two or three adults safely. Either boat is a
little tippy with only one person aboard, standing up,
but stable enough when seated for open water. ATHEY
draws 6" with 3 aboard, and has 6" freeboard.
There is a downside; subracting two feet starts
increasing wavemaking and overall resistance (drag)
above 5 mph (4.3 knots) based on Matt Brose' resistance
calculation spreadsheet (www.marinerkayaks.com), or
other means of calculation.
Plans are $75. Custom Built, about $2000.