User Manual

Erwin XL slope building Instruction August 2018
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6. Gluing the fuselage
Check the alignment of the V-tail regarding the axis of the
fuselage, so that it is fixed symmetrically.
To do this, mount v-tail and wing on the fuselage. Look at
Erwin XL from the front and slowly lower the tail, until the
ends of the elevator disappear behind the wing.
If both ends of the elevator disappear at the same time,
the v-tail is aligned correctly.
If the v-tail isn’t aligned correctly, chamfer the edges of
the fitting. Put the two parts of the fuselage together again
and turn one part until the v-tail is mounted symmetrically.
Furthermore, check, if the difference in angle of attack of
+1° can be set without problems.
For this, put the 2 parts together and place the fuselage on a flat surface. The distance between
fuselage and surface should be 7mm at the joining spot. You can f.e. check this with a small
piece of wood, which you place under the fuselage.
If you can’t assemble the 2 parts of the fuselage in this position, grind at the fitting.
Then glue the parts together. Use epoxy-glue and some cotton flocks to thicken the glue.