RC-Xplanes EDGE 540 T Outrunner Tabs Instruction Manual
Page 4 of 10
Distributed by RC-Xplanes 541-261-2707
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A
2005
2B:
Find the SMS motor mount parts bag with 8 laser cut Lexan “Ls” and 4, 4-40 x 3/8” Nylon nuts. Sand the 8 Lexan pieces to a frosty
white on both sides. Sand the 4 nuts a little on all six sides. Lay the fuselage and the two front 90 degree supports flat on your bench
.
Take four of the Lexan “Ls” and align them as shown in the left picture over the cutouts in the foam for the mounting nuts. Hold the
“Ls” one at a time in place and float a drop or two of thin RC-Xplanes foam safe CA along the edges of the Lexan allowing the CA to
travel between the foam and the Lexan. Spray with Accelerant. Repeat for the other three “Ls”. Turn the fuselage and 90 degree
supports over on your bench. Prepare the four nylon nuts with some wax or Vaseline plugging one end of the threads of the nut
without getting any on the sides. Push the nut into the cutout with the plugged end of the nut to the closed end of the cutout. Push the
nut all the way to the rear of the cutout and down so the flats are parallel to the foam sides and against the installed Lexan on the
bench side. Use two drops of RC-Xplanes Medium CA on each side of each nylon nut and allow to flow down for a few seconds. Align
and install the remaining four Lexan “Ls” as you did on the other side. Once cured, use one of the 4 supplied Nylon 4-40 screws to
insure that each nut still has clear threads. If not a 4-40 tap can be used at this time to chase any hardened CA from the threads.
Step 3: Wing and Stabilizer Fitting
3A:
Lay the wing and stabilizer flat on your bench with the spars facing up. Match the ailerons to their wing side with the double beveled
edge toward the wing and make reference marks for the left and right sides on the bottom surface. Mark each aileron 1.5” from the
outside edge on the double beveled edge. Make marks every 5” inward from there so there is four hinge center markings every 5
inches per aileron. Mark the rudder on the double beveled edge at 0.5” down from the counter balance, 0.75” from the bottom edge of
the rudder and half way between these two marks for three hinge center marks on the rudder. Align the control surface with the mating
surface and transfer the hinge marks.
Lay the elevator halves on a flat ruler at 8 1/8” between the counterbalances. Find one of the 3” pieces of 0.156” carbon tubes. Lay it
on the ruler in the center of the elevator halves and mark it’s end positions on each elevator half. Sharpen one side of the 3” elevator
joiner on its inside diameter with a #11 Hobby knife and use it to cut the grooves in each elevator half. Make hinge center marks at 0.5”
from the counter balance and 0.5” out from the end of the elevator joiner tube groove. Transfer these hinge marks to the stabilizer. At
all of the reference marks you have made, use a sharp #11 blade and make hinge slots that are just a bit longer than the hinge tab is
wide. Test fit these surfaces to make certain your hinge slots are all in the correct position. When you are satisfied with this fit, remove
the control surfaces and hinges. Set these aside for later installation.
3B:
Test fit and adjust if necessary the main wing and rear stabilizer into their fuselage slots. The rule of thumb here is that if the slot is too
short the fuselage will bend right or left along its length. If the slot is too narrow the fuselage will try to fold along its length. A word
about laser cutting and foam. The CNC laser controls the outside shape very well. As the laser beam goes through the foam it widens
by a few thousandths, leaving the beam exit side a slightly different dimension than the entry side. The thicker the foam the more the
beam widens. This needs to be corrected on the wing and stabilizer slots. Use the flat jewelers file wrapped in 220 grit sandpaper
inserted in the slot and sand the slot on top and bottom at a 90 degree angle in lengthwise direction. Try three or four passes at a time
so the slot doesn’t get too big. The rear stabilizer should be done at this time as well. Once you are satisfied with the fit put the
Fuselage/Wing/Stabilizer assembly into the gluing jig inverted.
