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Posted for Brent Regan <brent@regandesigns.com>:

Michael D Smith writes:

"What is the best location and number of static wicks for the LN4?"

Cant comment on the "Best" location but mine work well. I have two on each
aileron and two on each side of the elevator for a total of eight.

I didn't like the brackets supplied with the wicks so I made some receivers
by cutting some 0.035 wall 0.25 diameter stainless hydraulic tubing into 1
inch lengths. I then welded a socket head cap screw into the end so that the
static wick would slide into the tube and then thread into the wick. I then
made a fixture and drilled a 1/4 inch hole into the trailing edge of the
elevator or aileron. If you keep the hole a close fit then the you can Hysol
the receiver in place and still have good conductivity through the carbon.

It is important that you provide a conduction path around the
elevator/aileron hinges so that you do not get spark erosion on the bearing
spheres. I used copper tape on the elevator and fuselage carbon and then
soldered a wire (22 gage) between them, making a couple of loops at the
hinge. I used more of the tape on the airframe to connect static "grounds".

To check your work use an ohm meter and measure from the engine or avionics
ground to each of the wicks. You should see less than 10 ohms.

BTW, be sure to remove your wicks at air shows or they will get bent.

Regards
Brent Regan

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