TBM DV8R, Manual

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15
From the photos, you can see how the wing tips are held onto the center section. There are 2 spars,
one made of CF in the front and one made of aluminum in the rear.
1) Test that the rod (machine gun) goes completely through the 2 spars.
2) Find the hole in the front of the wing, and open it with a hot object
3) Insert the rod into the hole and test that it threads into the threaded insert in the back of the
wing. Don’t install the spars yet.
4) Slide the spars in as shown. The holes in them go towards the bottom of the wing. Push the
machine gun through them, and screw in place. These spars should be locked in place very
well. The machine gun won’t unscrew during flight and fall out since there is no vibration.
5) Test fit the wing tip onto the spars.
6) Glue the spars to the wing tip only. Once the glue is set, remove the machine gun, and the tips
should come off as long as you were careful not to get glue onto the wing ribs. Clean the spars
with alcohol first. Then apply a small amount of Hysol into the slots in the wing tips. You don’t
want glue to ooze out of the slot and glue the wings together. There is not a tremendous
amount of force trying to pull the wing tips off, but enough glue must be present to hold the
spars in place.