(04-Mar-2023, 04:21 PM)Pathfinder075 Wrote: Build two 75mm or 85mm power whoops, 1-2S, 12A AIO, 1103 motors, ELRS, OVX303, Caddx Ant Nano, or similar spec.  You should be able to build each fairly cheaply  Then with a cheap radio and goggles for your son, you should be able to both get in the air at the same time.  Also quads in this size are easier to learn on, don't break so easily, nor cost so much to fix when they do.  Not to mention 1-2S lipos are reasonably cheap.  Also set up some race gates and obstacles around your property and then you have a track to fly and learn on as well.