Snoopy1
640cc Uber Pimp
That sure has a nice sound to it. Like the plane.Here's a quick video of what two of the Scorpion's sound like spinning 15x8 props just over 9k rpm. 4 of them is going to sound wicked! I played with my throttle calibration/curves on both motors to get them very close in RPM. It eliminates most of the oscillating/droning sound you hear from twin aircraft.