760µs/560Hz (tail rotor gyro only)

Price: $99.99

    Before adding this servo to your cart

    This 120oz-in servo is suitable for helicopter tail rotor applications only! This means neutral is 760µs instead of the 1520µs of servos connected directly to a receiver. Basically, a receiver's servo output sensitivity doesn't extend low enough to signal this servo - it responds only to gyro output.

    This servo represents great value 'and' outputs more torque than our competitors - for when high performance meets a budget - all in a standard-size package! Representing perhaps the perfect tail rotor servo for your Goblin 630, Pantera P6, T-Rex 600, or even 700-class models; these are some highlights;

    1. Features a brushless motor. Electronic commutation means there's no excess heat and 5X longer life because electrons don't wear out.

    2. Plus, we CNC-machined the center case from a solid billet of 6061-T6 aircraft aluminum instead of using cheapo pot metal. And ours, with cooling fins reduce operating temperatures compared to smooth side servos helping better keep things in check when the servo motor is working hard. Fins increase cooling area to better shed electronic-destroying heat!

    3. Then, to reduce weight, we mold the upper and lower case sections with tough Nylon 6,6 and to reinforce it, we press bronze inserts for the gear shaft pockets. This composite construction results in a case that's significantly lighter than an all-aluminum case, which because the tail rotor servo is behind the main shaft helps the CG without sacrificing strength.

    4. finally, the case is assembled with 10 (ten) Allen-head machine screws instead of four (like competing designs) for greater rigidity.

    5. Beyond ordinary dual ABEC-3 ball bearings, this servo has been equipped higher precision dual ABEC-9 bearings for an ultra smooth feel.

    6. You also get all-metal gears (no plastic), and key to higher speed is using lightweight 7075 hard anodize (25T spline) output (the largest gear in the gear train). Added to which, these gears are wider than usual thus increasing the surface area for long wear.

    7. Optimized for high voltage (HV) battery packs (7.4V nominal) or 8.4V from a BEC.

    8. Note; since centering is the sine qua non for a high performance servo, this servo has MIL-SPEC components. Along with a genuine Nobel potentiometer, this means the best possible performance because we don't compromise in our goal of building the best mini-size servo money can buy.

    9. In closing, if you believe protecting the electronics against vibration is important then you'll be happy to learn how instead of a cheapo piece of foam we protect the electronic components of the PCB (printed circuit board) against vibration with potting compound. This is exactly how the military and NASA bullet proof their electronics. And quite honestly, it's a pain in the hind quarters, but we think of it as going the extra mile because like you, we're modelers too. Or put another way, we fly what we sell.


    Bottom line? The DS120BLHV tail rotor servo is probably the one you want because it's better than what competitors offer. It's better because it's brushless, strong, fast, and centers superbly. Note; if weight is a concern, or if you want our very best tail rotor servo, then eyeball our DS95BLHV mini, instead, because it's plenty strong for models up to 800-class but of course, this one costs more. And yes, we acknowledge the irony in our mini-class being considered our top-of-the-range but it is, what it is!

    Overall Customer Rating of 7 Reviews:
    Buda TX

    Perfect

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    So I bought this 760us tail servo and 1520us cyclic servos to go into a KDS 5.5. After 3 months of flying the servo is still performing perfect. Tail was super easy to tune using Brain 2 FBL. I am now going to move it over to a XL Power 550. Also ordered mini servos to match. So far I am impressed with the servo quality.


    Tacoma

    Great Servos

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    Have all 4 for my Logo 550 good quality, and really good price.

    Alabama

    Excellent Quality & Customer Service!

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    I don't think you can find a better quality servo at this price point. And Made in the USA! Not to mention, the customer service is the best! Thanks John for an amazing product!

    Ohio

    Awesome tail servo!

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    I only have a few flights on this servo. However, it works very well. Stops are crisp and hold power is great! Excellent product at a great price point!

    Still buttery smooth after 3years!

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    First thing I noticed is the DS120BLHV moves the tail very crisply - and fast! In service since January 2015 it’s been very reliable despite a handful of crashes. It's buttery smooth and performance is great. Thank you for making a great product and providing top notch customer service!

    - Viktor Zorin, Gasselterboerveenschemond, Netherlands

    Per WikiPedia - Gasselterboerveenschemond is a hamlet in the Dutch province of Drenthe. It is a part of the municipality of Aa en Hunze, and lies about 21 km east of Assen. It is the longest placename of the Netherlands that is written as one word. (editor)