Step 1. Begin assembly of the Stuka by attaching the rear fuselage to the main body of the aircraft.
Step 2. Attach the stem to the flight stand base. The hard plastic of the flight stand will bond firmly with plastic cement, but you can also use superglue.
There are two sizes of stem; the standard practice is to use the shorter stem for helicopters and the tall stem for strike aircraft, to bolster the impression that they are flying at a higher altitude. But there's no reason you shouldn't use the tall stem for helicopters if you like how it looks.
Left: The stem attached to the base.
Step 3. Add the magnet cap to the top of the stem. The cap fits snugly to the top of the stem, so you will only need a small amount of glue to neatly secure the magnet cap in place.