Probably the tightest flying RC that I have seen with precision and control is the Hexacopter. Hexacopter is basically like a helicopter but with 6 blades instead of one.
Of course, there’s also quadrocopter, which uses 4 blades. You are about to see the most fabulous synchronization of four quadrocopters moving in perfect sync and harmony. You could probably build an autonomous war machine with this, pretty darn cool I’d say.
You will have to amaze your own ey