Glued together with E6000 which is the very best foam glue in my view. It has just the right flexibility. A long snap-off blade to increase airflow, a heated up screwdriver to smooth off the cut areas. The heatsink is one of those I.C. heatsinks, it was a bit tall so used a dremmel cutting fick to shorten it a little.
No strobes, this plane will not be flown very far away.