Four 60 inch rotors (10 foot rotor cone diameter, sans dihedral)

Rocket is 38.5 inches tall at launch, flies on E9-4 engine (ignore the narrator, it's not an E9-6).

Kind of a beast for a helicopter at 330 grams with engine.

3 successful launches (no failures, minimal damage on flight 3)

Videos aren't great but best I could come up with so far.