D946TW HV (23kg 0.10s) - Tested

More information about the original product:

Hitec D series servos

The new Hitec D series digital servos combine the ultra-fast response, accuracy and high resolution of 4096 steps of the HS-8xxx servo series with the programming capabilities of the HS-7xxx series servos. In fact, they far outperform existing servos thanks to a 32-bit processor and 12-bit ADC converter. In addition, they offer a "Wide Voltage" function allowing the use of power from batteries in a wide range of nominal voltages from 4.8 to 7.4 V.

32-bit MCU/12-bit ADC

The new Hitec 32-bit processor coupled with a 12-bit analog-to-digital converter converting the signal from the feedback potentiometer offers the best response yet achieved among RC model servos. You can also use the DPC-11 universal PC interface (applicable to all Hitec programmable servos) to tune your D series servos for maximum performance (deflection size, resolution, fail-safe, soft start, etc.) in a wide range of applications.

Wide Voltage

Hitec "Wide Voltage" technology supports all types of receiver batteries with a nominal voltage of 4.8-7.4 V. This means that you can directly power the servos, for example, from a four- to six-cell NiMH or NiCd battery, two-cell LiFe, LiPo or Li-ion – of course, it must be remembered that the thrust and speed of the servo depend on the magnitude of the supply voltage.

Output shaft with 25-tooth helix

The output shaft of the D-series servos has a 25-tooth helix as standard (among other things, it allows more precise adjustment of the lever perpendicular to the longitudinal axis of the servo) and new levers with a corresponding helix are used (they are not compatible with older Hitec servos).

Soft start

The soft start protects the servo and the rudder control mechanism when the on-board electronics are switched on - after switching on the servo slowly moves to the neutral position - there is no sudden jerking.

Smart

A new control algorithm preventing self-oscillation of the servo during a "sharp" setting of the servo deadband, saving transmissions and reducing current consumption.

Programmable functions

With the help of the new DPC-11 programmer/USB interface, you can set a number of parameters on the D series servos to perfectly adapt the servo to your application. D series servos have consistently high resolution; with the help of the "deflection size (EPA)" function, you can set the servo deflection range up to 180° (at a control signal with pulses of 0.9-2.1 ms width). Programmable values are:

• reset to factory defaults
• deadband width (adjustable in 10 steps)
• sense of rotation
• rotation speed
• neutral
• soft start
• deflection size (up to 180°)
• enable or disable fail-safe
• fail-safe emergency deflection setting
• overload protection (power limitation 0-50% in case of overload)

Splash Proof

The servos are resistant to splashing water and moisture (they are not intended for permanent immersion under water). This makes them suitable for use in harsher operating conditions in RC cars, boats and other models where the servos are exposed to the weather.

D946TW

Strong and fast servo in an all-metal box with titanium gears with output shaft mounted on two ball bearings for use in RC models of all types. Especially suitable for RC helicopters, aerobatic and 3D model airplanes 3-6 kg, racing RC cars 1:10/1:8 and similar applications with high demands on speed, pulling power and long-term durability.

In the future, it will replace the HS-7945TH and HS-8370TH servos.