Hi,

I have a system in my PIK-20 that works very well. I installed a brass tube
that has the appropriate ID to slip over a carbon fiber aerrow shaft. I
drilled a hole in the fuselage floor behind the stick and through the
outside of the aircraft. I then epoxied the brass tube in the hole and cut
to be flush on the bottom of the aircraft and the seat floor. One end of
the arrow shaft is cut at a slant to create suction in the airstream. The
other end of the arrow shaft is glued into a model airplane fuel bulb (looks
like a turkey baster bulb, but has a much smaller opening at the bottom.
You will have to size the arrow shaft so that you can insert into the brass
tube with the canopy closed. In my ship, this results in an arrow shaft
that is 20" long. The rear of the fuel bulb has a hole cut in it to provide
a friction fit (seal) around your willie.

When done, I flush it with a little water put a piece of paper towel in the
opening, and stow the assembly. Oh, And I use a bit of mylar over the exit
hole so that the hole is sealed unless the arrow shaft pushes the mylar out
of the way.

Works great - no muss, no fuss, no catheters and no yellow stains anywhere
on my ship.

Glen Kelley
"KP" wrote in message
oups.com...
Hi All
Like to install a relief tube system in my ASW-27 and looking for some
ideas.

Ken (KP)