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This
is the "Pedal Wa'a", built by Clive Armitage of Cobb, Georgia,
USA.
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My
ama are 10'4" long and 4.25 inches wide with a weight (bathroom
scale) of 5.25 lbs. When I find the groove I can almost keep
both off the water at the same time.
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The
boat is 23'5" long with a max beam of 8 feet and a main hull
beam 13.5 inches.
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I am spinning a 58 chain ring with a 10 tooth lower
sprocket, then through
two(2), 1 to 1 sealed right angle transmissions to the prop via drive
shafts
for a 1 to 5.8 gearing. My fared drive leg is only 1 1/4 "
wide with the
prop shaft 10" below the hull. The hull and (na ama) are from Huki
Outrigger Canoes, the Stealth model done in vacuum bag glass
with carbon
reinforcements. The pedal tower is from Harry @ Howard, with the
transmission, drive leg, and steering installation of my own design. |
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Note
that the trans at the bottom of the crank tower can be reversed to
accommodate either clock wise or counter clock props (like the
seacycle), or for a auxiliary power like an electric motor.
The
two orange rods are glass and provide steering with either hand,
through a bell forward of the crank tower to steering cables that
run through the boat and exit just forward of the rudder post.
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Like the Pedalos the crank tower can
be tilted aft for shorter legged riders, (like my wife), without
having to readjust the seat or chain tension. |
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Here is the drive leg I created, the
90 is inserted into the G-10 leg shaft with a G-10 drive shaft held
inline via nylon bushing within the leg shaft. The fairing
is glass epoxy and is hollow and sealed (it floats). The leg slides
in to a 1.25 inch hole in the bottom of the boat and is simply held in
place by a single 1/8" pin. |
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