AviPro Aicraft, Ltd. Bearhawk N33RB, Руководство по помощи строителя

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plug for the end or stick it slightly into the ground
to seal it. Make sure the can or ladle you’re using
has a narrow spout or make a funnel from alu-
minum flashing.
Because the tube is so long and you want
the lead to keep flowing, rather than cool on the
way down, carefully warm up the tube with your
torch. Remember, it’s aluminum and easy to melt,
so don’t get it too hot.
Because there is no airspace in poured lead,
there will be too much in the tube, so be prepared
to drill some out.
When the tube is full, slide it in place and
either pop rivet it (using stainless rivets) or run two
stainless flathead sheet metal screws into it through
each of the rib flanges.
Using Lead Birdshot
If you don’t want to mess with hot lead you
can fill the tube with bird shot. Go down to your
local gun store that sells reloading supplies and get
the finest lead shot they have. You want nothing
bigger than 8 1/2 (the bigger the number the small-
er the shot) and finer is better as there will be less
air space in it. If you can find number 12 shot,
great! MAKE SURE IT IS LEAD BECAUSE
SOME PLACES SELL STEEL SHOT, WHICH
ISN’T HEAVY ENOUGH.
Although some builders have made up a
paste of lead and epoxy, that is difficult to get down
the tube and the epoxy takes up space. The shot
itself pours in like sand. First, however, rough up
the inside of both ends of the tube with super coarse
paper, 60 grit or so, to give an epoxy plug some-
thing to hang on to later. Tape one end closed. Fill
the tube with the lead shot up to about 3/4” from the
end . Make sure to lightly pound the tube against
the ground, so the shot settles into place. Then,
make up a slurry of epoxy (JB Weld is good) and
shot that is mostly lead shot (for weight) and fill the
remaining space with it as a plug.
Before plugging up the other end, weigh the
Lead can be melted a number of ways, but do it outdoors and
avoid the fumes.
The tube can be clamped against something or stuck in the
ground. Warm it before pouring the lead in.
The smaller the bird shot, the fewer air pockets there will be.
This is 8 1/2 shot and 12 would be much denser.
A plug formed of epoxy and shot keeps the loose shot in
place.