Futaba HPS-HC700 - High Performance Helicopter Servo
A new high performance servo for EP/GP helicopters (especially F3C competition helis). Additionally the HC700 uses a new HPS brushless motor that is developed to draw the least current possible and produce very little heat.

Specs:
Will replace the earlier BLS273SV & BLS275SV helicopter servos
HPS Brushless Digital Motor
Aluminium Case
Ball Bearings
Water & Dust Protection
HV (High Voltage)
S.BUS/S.BUS2 compatible
Operating Voltage: 6-7.4V
Speed: 0.075s/60° (@ 7.4V) - 0.09s/60° (@ 6V)
Torque: 20kg/cm (@ 7.4V) - 16kg/cm (@ 6V)
Size: 40.5 x 21 x 37.8 mm
Weight: 73g