Supply voltage LiXX cells: 4 - 7 ; RPM/V [RPM/min/V]: 515 ; Nr. of turns: 18 ; Internal resistance [mOhm]: 70 ; No load current [A]: 1.5 ; max. effenciency [%]: 89 ; Max. efficiency current (η>82%) [A]: 15 - 40 ; Max. peak current (60 s) [A]: 59 ; Max. power [W]: 1500 ; Diameter [mm]: 50 ; Lenght [mm]: 54.4 ; Shaft diameter [mm]: 6 ; Weight [g]: 315 ; Nr. of poles: 14 ; Timming [°]: 15 - 25 ; ESC [A] : 70 - 90 ; Sailplane up to Weight [g]: 5000 ; Trainer up to Weight [g]: 4000 ; Acrobat up to Weight [g]: 3500 ; 3d up to Weight [g]: 3000