Trainer 40 Instructions
Joining the wing panels
1. Locate the wing joiner and slide it into the slot of the left hand wing panel. If required, carefully file the opening of the slot to
allow the joiner to pass freely into the wing. Using a pen, mark onto the joiner the centre line position. Trim away the covering at the
aileron servo openings on the wing underside.
1.1 Correct orientation of the wing joiner
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1.2 Mark the wing joiner with the wing
centre line
1.3 Trim away the covering at the aileron
servo openings
2. Following the adhesive's instructions, mix up sufficient five minute epoxy and spread the adhesive evenly onto all sides of one
half of the wing joiner. Making sure the joiner is the correct way up, push the joiner into the left hand wing panel up to the centre
line mark, wiping off any excess adhesive. Allow epoxy to set.
2.1 Applying epoxy to one half of joiner 2.2 Pushin left hand wing panel 2.3 Wiping off excess adhesive
3. Trial fit the right hand panel by sliding it over the protruding joiner, checking that the two wing panel faces meet without an
excessive gap. Note that the wing is not flat but has a slight bend, called dihedral. This is built in automatically using the joiner and
panel faces. When satisfied apply PLENTY of epoxy to the joiner and panel face, sliding the joiner into the right hand wing panel and
bringing the two wing halves together. To ensure sufficient working time use 30 min or 1 hour epoxy. Wipe off any excess adhesive
and use masking tape to hold the panels aligned together. Allow the epoxy to set and remove the tape.
3.1 Applying epoxy to the joiner
and panel face
4. Approximately six millimetres from
the wing join, apply masking tape to
each panel all around the wing. Using a
piece of card or thin wood, scrape
five minute epoxy into the join between
the two masking tape runs. Remove
the tape and allow the epoxy to set.
3.2 Pushing the right hand panel over
the joiner
3.3 Using masking tape to hold the
panels aligned together
4.1 Masking tape applied all around
wing join
4.2 Scraping epoxy into the join
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