Here's "Mono4", a half-scale version of my 8" Mono, at 3.9" (10cm) wingspan and 2.3 grams, with Nick Leichty's amazing 180mg receiver, using just rudder and throttle.

After a couple of ROG's in the house I took it outside at mid-day in a very light breeze. Flew half a dozen circuits of the lawn, then a couple of figure eights. Amazingly stable. It got high enough that I mis-read which direction it was going (easy to do with a 4" transparent plane) and impaled it on a tree. Needed a ladder to get it down, but no damage, and I carried on flying.

Since then I have flown it many times, indoor and out. As long as the wind is very low it flies just like much bigger planes - very stable. In the videos it appears to be going very fast, zipping from one end of my garden to the other in seconds. In reality it was just flying fairly close to me at a modest speed. Its small size makes it appear much further away and faster than it is.