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Technical Specifications
Last Updated: 2026-07-10Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| Identity | |
| Brand |  |
| Product Number | (add) |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
25.00 oz-in
1.80 kg-cm
0.2 N-m
4.8V
22.22 oz-in
1.60 kg-cm
0.2 N-m
|
| Speed |
6.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
4.8V
0.09 sec/60°
666.7 deg/s
111.1 RPM
|
| Running Current | (add) |
| Stall Current | (add) |
| Shaft Power | 0.46–0.66 W |
| Physical | |
| Weight | 0.42 oz12.0 g |
| Dimensions |
L 0.89 in W 0.45 in H 0.97 in L 22.5 mm W 11.5 mm H 24.6 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | (add) |
| Motor Drive | (add) |
| Gears | Metal |
| Gear Spline/Teeth | (add) |
| Rotation Mode | (add) |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | (add) |
| Rotational Range | (add) |
| Mechanical Limit | (add) |
| Pulse Cycle | 3.6 ms |
| Pulse Width | (add) |
| Neutral Position | 1520 µs |
| Dead Band | 3 µs |
| Refresh Rate | (add) |
| Angle Sensor | (add) |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 4.5–6 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | 5.000 A5,000 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 210 mm8.27 in |
| Origin | |
| Country of Origin | (add) |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
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Reviews (3)
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Pat
May 26, 2015Application(s): 450 helicopter
Comments: Gears are tough, held up in many crashes. Did develop gear slop after a few flights.
these are tall servos, need to mount inboard for 450 pro, like the original trex 450. or else get the Tarot one piece mount which moves the servo in.LasseK
February 21, 2013Application(s): Swash for HK250GT FBL
Comments: This review is based on the assumption that these servos are the same as the HK-D922MG (which is what I have actually used). I put them on the swash for my FBL-converted HK250GT. Had quite some problems with instability, had to reduce both proportional and differential gains (on roll and pitch) on my ZYX-S to stop the heli from oscillating, which it did mostly in the roll plane . Still not happy with the stability. They are quite tall also, so cannot mount the canopy on one side of the 250 (same with my T-Rex450 where I just dry-fitted them to check). Will not purchase more of these.
2Doggs
September 26, 2012Application(s): Cyclic on 450 Pro heli
Comments: Having had a decent experience with Henge 933's, I bought these thinking they might work even better on my 450, being supposedly faster. On my servo tester, however, they showed the same humble 0.13s @ 6v, which is definitely nothing special. Worse, they had a lot of gear backlash. In use, they sound noisy.
In flight, I had to reduce gain on my CX 3x1000 FBL controller to stop a cyclic shake, compared to the setting that worked using Henge 933's.
Like the 933's, the cases are fragile, with the mounting lugs breaking off in even a minor crash or even a hard landing.
I give them a three star rating due to the slow speed, gear slop and fragile cases, the only redeeming factor being the low price.