The Futaba BLS251SB is a digital rudder servo designed for tail rotor control of helicopters. It succeeds the BLS251 with its new S.Bus feature and is directly programmable by the FASSTest 18MZ radio system. The is a ultra-fast and powerful rear brushless digital servo with metal gears and 2 double ball bearings. Its aluminum case helps dissipates heat fast.
Torque(1): 3.8Kg/cm
Speed(1): 0.06sec/60
Dimensions: 40x20x36.8mm
Weight: 60g