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Servo Database › Hitec Servos › HS-55
Hitec HS-55 - Standard Feather Servo
| Brand:
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| Product Number:
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31055S |
| Suggested Retail:
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| Street Price:
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19.95 USD |
| Compare:
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User Reviews
| Number of Reviews:
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5 |
| Average Rating:
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2.4 / 5.0 |
Basic Information
| Modulation:
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Analog |
| Torque:
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4.8V: 15.2 oz-in (1.09 kg-cm)
6.0V: 18.0 oz-in (1.30 kg-cm)
|
| Speed:
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4.8V: 0.18 sec/60°
6.0V: 0.14 sec/60°
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| Weight:
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0.28 oz (8.0 g) |
| Dimensions:
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Length:0.89 in (22.6 mm)
Width:0.45 in (11.4 mm)
Height:0.94 in (23.9 mm)
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| Motor Type:
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Coreless |
| Gear Type:
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Plastic |
| Rotation/Support:
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Bushing |
Additional Specifications
| Rotational Range:
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? (add) |
| Pulse Cycle:
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20 ms |
| Pulse Width:
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900-2100 µs |
| Connector Type:
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User Reviews of Hitec HS-55 (5)
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Rating:

Application(s):
Park jets and foamies
Comments:
Good bang for the buck if you want to stay with Hitec. Very similar to the cheaper Tower Pro SG90, but much more expensive. I haven't broken one yet.
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Rating:

Application(s):
Park flyers
Comments:
These used to be the standard park flyer servo before so many other alternatives became available. They are still pretty good servos. They are fairly strong - although they will strip if abused of course - but perhaps the key thing is that they are very reliable, they never seem to fail for no reason. There are cheaper Chinese alternatives, but those sometimes fail for no reason, which could lead to the loss of a good plane. So Hitec HS-55s are well worth considering.
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Rating:

Application(s):
Everything: Multiplex Easyglider rudder, elevator, ailerons; custom 100+MPH wing elevons; 3D foamy park fliers; ...
Comments:
I thought these were reliable until I put them on a servo cycler--4 of 6 servos tested get stuck at unpredictable times (4.98V cycling from 900-2100ms once per 2 seconds). Three of the offending servos was marked "07.07" and another was marked "07.08". At least one of the sketchy servos was new in box until put on the cycler. I'm now wondering if some of my crashes weren't my fault? Also, the HS-55 servos are noisier and much slower than the Futaba S3110 and S3114 servos. I too have stripped the gears on a few HS-55s during crashes, but the Futabas stripped just as easily. HS-55s can be found for $9.99 each, which isn't too bad.
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Rating:

Application(s):
I have used these in several small foamie 3D planes, and on the FunCub for flaps.
Comments:
Out of eight HS-55 servos I had, four would get stuck intermittently, usually at bad times, with several crashes occuring. Two were new with less than six flights. I have never had any of my dozen Futaba 3114's fail. I do not recommend these servos, for any use.
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Rating:

Application(s):
Many light foamies
Comments:
Don't bother if you want to make sure your plane can withstand even the slightest of impacts--these are total junk. They will break even in a moderate crash even if the control surface survives.
They are simply whimpy---and you get no hamburger tomorrow.
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