There's a glider competing here in Uvalde with an array of about 12 LED double-strobing blubs on the leading edge of his vertical fin. A plastic lens conforming to the leading edge's airfoil shape covered the bulbs. We saw it working the other day during a landing period in which a gust front delayed landing late. The sky's light was low (about 10 minutes before sunset) and we saw him easily before we could make out the glider. It works great! It would be very useful when thermalling under a CU in the shadows. I give it thumbs up for head-on collision avoidance.

It would be cool if you could interface it to the PowerFlarm and have it activate only when PF detected an aircraft within a mile of you. I thought this design was really nice.