32
Another view of tank mounting.
Annealing shaft tube for easier bending. Just heat
until color changes.
You should have all of the blind nuts installed for
the hardware at this time.
Sand the tops of the rails where the radio box goes.
Mix up about ½ ounce of 30 minute epoxy.
With a small brush, coat the bottom of the radio
box, and the tops of the rails.
Set the radio box on the rails, 1-3/4 inches behind
bulkhead 4, and flush with the left rail.
Make sure the box is in correctly (rudder servo in
rear).
Put some weight in the box to hold it in position
Double check that the box didn’t move, and go
away for an hour.
After the radio box is cured, make the rudder
pushrod.
You have several options as to what to make it out
of. Just make sure it’s strong and stiff
We like to use a 4-40 pushrod from the hobby shop,
which is threaded on one end.
We attach the rudder end with a 4-40 ball link, and
the servo end with a solder clevis.
Shaft tube and cable
Slide the 5/16 shaft tube into the 11/32 stuffing tube
until it protrudes into the boat about ¼ inch.
Mark the shaft tube on the bottom of the boat where
the 11/32 stuffing tube ends.
Make another mark about 3 inches beyond the first.
Remove the shaft tube.
With a propane torch, heat the 3 inch area of the
shaft tube you marked.
Heat it until it changes color, to a purple color. Don’t
get it red hot.
It only takes about 10 seconds to get it to change
color.
Let the tube cool at room temperature. DO NOT
quench in water. It must cool slowly. The shaft tube
is now annealed, and will bend very easily.
Bolt the engine back in.
Slide the shaft tube into the stuffing tube until it
touches the collet.
Carefully bend the annealed portion of the shaft
tube with your fingers, so that it is parallel with the
bottom of the boat, and about ½ inch below.
Summary of Contents for I-BOX
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