New Electric Helicopter Speed Record by Scorpion HK-4530 Motor
22.09.2010A new speed record on horizontal heli flight,191 km/h, was achieved by a custom paintbrushed Henseleit TDR with the Scorpion HK4530 motor. Congratulation to Mr. Oliver Jellen, Mr. Powercroco & Mr. Jan Henseleit.
Source from: http://www.rcgroups.com/forums/showpost.php?p=16089929&postcount=7305
Special Thanks to Simon for providing the information