Do
It Yourself Kayak Sail Instructions
Contributed By John and Naomi Royals of
JNR Sail
This
simple do-it-yourself kayak sail is a very inexpensive alternative
to some of the more expensive ready-made sail kits on the market.
If
you are like me you want to "do it yourself" but you do
not want it to look like you did it yourself. With the JNR Kayak
Sail you can take great pride in accomplishing this project. It
will look professional. Not only will you save a ton of money on
the cost but your new sail will look and perform just as good as
the more expensive versions. Everyone on the lake will want a sail
as cool as yours!
Materials
needed from local hardware store: Carefully
match your pvc pipe to the wooden dowels. Dimensions can vary from
one supplier to another.
- Two
"1/2-inch" PVC tees (called 1/2" for some reason
other than the actual size)
-
At
Tom's TopKayaker Shop:
We
carry JNR Sails with industry standard hardware
for kayak modifications. Now
you can buy the JNR recommended
hardware in a kit at Tom's TopKayaker
Shop
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Two
1/2-inch PVC end caps
- Two
6 foot sections of 1/2-inch PVC pipe
- Glue
and primer needed for PVC welding
- One
foot of 1/2-inch ID braided PVC tubing
- Two
1/2-inch to 1-inch stainless steel hose clamps
- Three
5/8-inch by 48-inch dowel rods
Materials
needed from Toms
Top Kayaker Shop
- JNR
Sail Rig Parts Pack with
SAIL
OR THE FOLLOWING:
- Two
well nuts with 1-inch screw
- Two
1-inch fender washers
- Two
to five strap eyes depending on your kayak
- Four
to ten well nuts or rivets to attach strap eyes to kayak
- Two
micro blocks
- Two
side release snap buckles for 1-inch webbing
- Three
3/16-inch quick link chain links
- Six
feet of 1-inch wide webbing
- Ten
feet of 1/4-inch shock cord
- Twenty-five
feet of 5mm Deck Rigging Line rope
- One
JNR 16.1 sqft (1.5 sq meter) kayak sail available in red, blue,
and yellow (image 1)

#1
Make sure your saddle straps are above waterline
and
that you have a minimum of 12 inches to
shock cord attachment point.

#2
Completed mast &
saddle without sail

#
Completed
sail mast saddle.

#4 Sail
mast saddle w/ sail attached
& secured to saddle.

#5
Sheeting
and shock cord attachment to mast.

#6
Routing
of sheeting around seating area. The blocks remove most of
the friction from your sheeting allowing for easy adjustment
of sail from downwind to a reach.

#7
Shock cord attachment point

#8
Sail secured

#9
Down wind sailing

#10
90 degree reach
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Step
One: Attaching the side release snap
buckles to your kayak
Determine
where to drill holes to attach the female ends of the side release
snap buckles (photo #1).
The two holes must be above the water line and at least 12-inches
from the shock cord attachment point on bow of the kayak.
Drill
the holes just big enough insert well nut screw into hull. Now take
two 8-inch long 1-inch wide webbing strips and fold in half. One inch
from the end of the webbing make a mark with a pen in the center
of each end of the webbing strips.
Take
an old Phillips head screw driver and heat with a candle and melt
a hole where you made the mark into each end of the webbing just
big enough for the well nut screw to go through. Attach
the female end of the side release snap buckle on the webbing loop
and place one flat washer on the well nut screw and insert into
both holes of the webbing and then into the hole in the kayak and
install the well nut.
To
install well nut Reach inside the kayak with the well nut(s),
and twist the well nut onto the screw, with the larger flange end
sealing against the hull material. Hold the well nut in place while
you turn the screwdriver (out of the kayak) and eventually the well
nut will hold itself and only a few more turns of the screwdriver
will be necessary. These instructions are from Basics
of Strap Eyes, Rivets and Well Nuts by Tom Holtey.
Now do the other side.
Step
Two: Making the masts
Cut two six foot long sections 1/2-inch PVC pipe. Weld an end cap
on to the end of each section of pipe. Take one section of the 5/8-inch
by 48-inch dowel rod and cut in half. Then put one of the half pieces
of dowel rod in to each of the 1/2-inch by 6feet long PVC sections.
Now
place one whole 5/8-inch by 48-inch dowel rod into each of the mast
sections. The
dowel rods add strength to the PVC masts. Weld one PVC tee to the
other end of each mast sections. (photo
#2)
Step
Three: Attaching the mast saddle to
your kayak
Insert
the 1/2-inch ID braided PVC tubing through both tees it will be a
tight fit but it will go in. The two tees should be about 2-inches
apart when finished trim off excess 1/2-inch ID braided PVC tubing
so that no more than one half inch of tubing sticks out past the
tees.
Now
slide the remaining 1-inch webbing into and all the way through the
1/2-inch ID braided PVC tubing so that equal amounts of webbing is
on each side of your mast saddle. (photo
#3)
At
this point you can now carefully slide your sail all the way onto
the mast. (photo #4)
Use the 1-inch webbing strip attached to your sail to secure the
sail to the saddle. Next place the male half of your side release
snap buckle on the 1-inch webbing.
Insert
the male end of the side release snap buckle into the female ends
and tighten the webbing very tight you want just enough slack in
the webbing to connect the side release snaps. Finally tie the two
ends of the webbing together tightly.
Step
Four: Attaching the sheeting and shock
cord to masts and kayak
Attach
the hose clamp to one of the mast at the point where the hole in
sail sleeve is located insert the 5/32-inch line and 1/4-inch shock
cord between the mast and clamp then tighten the clamp to firmly
hold the two lines to the mast. (photo
#5)
Mark
and install the strap-eyes to your kayak so that the sheeting can
be routed as shown in image to right. Use the micro blocks on the
two forward strap-eyes. You want to route the sheeting so as it
will not be in the way of your feet.
You
will want to place the rear sheeting strap eyes where they will
end up on your kayak between your ankle and knee so as to be easy
to reach for adjusting your sail but also not to interfere with
your paddling. Use the quick-link chain links on the rear two strap-eyes
as shown. (photo #6)
Routing
of sheeting around seating area. The blocks remove most of the friction
from your sheeting allowing for easy adjustment of sail from downwind
to a reach. Route
the shock cord through the quick-link chain link attached to the
bow of the kayak (photo #7).
The shock cord will deploy your sail from a stowed position.
Attach
the second hose clamp to the second mast and the ends of the sheeting
and shock cord. Adjust sheeting so that both masts are plumb removing
all of the slack from the sheeting. Now stretch the shock cord fairly
tight (so that when the masts are pulled down in the stowed position
the shock cord is at nearly at maximum stretch) and tighten hose
clamp very tight (a extra set of hands would be helpful at this
point).
Leave
extra sheeting and shock cord until you have sailed a couple of
times in case any future adjustment is needed. You may also want
to mark the sheeting and shock cord where they attach to the mast
with a permanent marker so you can easily remove and reinstall your
sail.
You
are now finished installing your sail.
You
can use the sheeting to adjust your sail for downwind sailing (photo
#9) and up to a 90 degree reach (photo
#10). You will want to attach a line to your kayak
to secure the sail to the kayak when not in use.
To
remove your sail from your kayak simply loosen one hose clamp enough
to remove shock cord and sheeting and unsnap both side release buckles.
I recommended that you carry a knife just in case of an entanglement
problem. Oh and have fun you are now a kayak sailor!
Related
articles at TopKayaker.net:
Hardware:
We
also recommend:
-
SAIL
THE FORUMS to get
answers to your kayak sailing questions.
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