Hitec HS-7945TH Multipurpose HV Titanium Coreless Servo (319oz/in, 0.10sec)

This is the HS-7945TH High Volt, Mega Torque, Metal Gear Servo from Hitec.

FEATURES: Ideal for high performance aircraft, cars, trucks and larger nitro
            and electric helicopters where high speed and high torque are
            needed
          7.4V optimized coreless motor designed to be powered from a 2S LiPo
            battery for extra speed and power (may also be powered by
            conventional NiCds)
          Durable titanium alloy metal gears with dual ball bearing output
            shaft (MK first gear)
          Programmable features include; Dead Band Width, Rotation Direction,
            Rotation Speed, End Points/Neutral Points, Fail Safe On/Off, Fail
            Safe Point, Resolution and Overload Protection (requires Hitec
            programmer HFP20, HPP20 or HPP21 HRCM4420
          Eight O-rings for water, dust and fuel resistance
          Heatsink case

INCLUDES: HS-7945TH High Volt Mega Torque Metal Gear Servo with Connector,
            1.8" (45mm) round horn, 1.2" (27mm) single arm, 2.3" (59mm) double
            arm, 2.8" (72mm) double arm, 1.3" (33mm) single arm, 0.87" (22mm)
            aluminum single arm, mounting hardware and instruction sheet

REQUIRES: Installing in model and connecting linkage

SPECS:    Motor Type: Coreless (7.4V wind)
          Bearing Type: Dual ball bearing
          Speed: 6.0V, 0.12 sec/60°
                 7.4V, 0.10 sec/60°
          Torque: 6.0V, 250 oz-in (18.0 kg-cm)
                  7.4V, 319 oz-in (23 kg-cm)
          Size: 1.57 x 0.79 x 1.5" (39.88 x 20.07 x 38.10mm)
          Weight: 2.40oz (68g)

COMMENTS: A note on coreless motors-a conventional servo motor has a steel core
            armature wrapped with wire that spins inside the magnets. In a
            Coreless design, the armature uses a wire mesh that forms a cup
            that spins around the outside of the magnet. This arrangement is
            much lighter resulting in smoother operation and faster response
            time.