These guys have been practicing their formation flying for a long time. That's how they got so good at this.
They are flying Bill Hempel Clipped Wing Cubs. These radio controlled aircraft have a wing span of 18 feet (216 inches) and are designed for the 3W-275cc engine but Azza and Sonny used the ZDZ 420B4-J. The weight is approximately 94-96 pounds.
https://www.youtube.com/watch?v=eOpWloE-JxA
Great tango in the air!
Yeah, they've been doing this many years progressively with larger RC aircraft. A lot of trust going on there.
Wonderful formation flying :thumbsup: :thumbsup: :goodjob::hatsoff: