Great Planes Stuka Ju-87 60 ARF - GPMA1340 - Manual (Page 13)

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6. Place the stab back into the fuselage. Stand back
approximately 10' [3m] and view your plane from the rear. Be
sure the stab is straight in relation to the wing as shown in
the sketch. If it is not straight, sand a bit of the wood away in
the stab saddle on the side that is high until the stab is
straight.
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7. Glue the stab in place with 6-minute epoxy, checking to
be sure that it is properly positioned before the glue has cured.
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8. Position the fin in the slot at the rear of the fuselage.
Mark the outline of the fuselage onto the fin. Then cut the
covering away using the same technique used for the stab.
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9. Test fit the fin into the slot. Use a builders triangle to be
sure that the fin is 90 degrees to the stab. When you are
satisfied with the fit, glue the fin in place with 6-minute epoxy.
How to cut covering from balsa.
Use a soldering iron to cut the covering from the stab. The
tip of the soldering iron doesn’t have to be sharp, but a fine
tip does work best. Allow the iron to heat fully. Use a
straightedge to guide the soldering iron at a rate that will
just melt the covering and not burn into the wood. The
hotter the soldering iron, the faster it must travel to melt a
fine cut. Peel off the covering (see the photo at step 11).
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