Futaba HPS-H700 - High Performance Helicopter Servo
A new all purpose high performance servo for big helicopters. The new Futaba HPS-H700 is the strongest helicopter servo that Futaba has ever made with an impressive 44kg of torque (@ 7.4V). Additionally the H700 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
Note, the HPS-H700 servo when used in a EP heli cannot use the built in ESC BEC - it must use an external battery
HPS Brushless Digital Motor
Aluminium Case
Metal Gears
Ball Bearings
Water & Dust Protection
HV (High Voltage)
S.BUS/S.BUS2 compatible
Operating Voltage: 6-7.4V
Speed: 0.07s/60° (@ 7.4V) - 0.08s/60° (@ 6V)
Torque: 44kg/cm (@ 7.4V) - 38kg/cm (@ 6V)
Size: 40.5 x 21 x 37.8 mm
Weight: 74g