JR DS821 Digital Sport High Torque Servo
Servo Gear Set: DS821, DS821R
DS821HV HV Digital Sport High-Torque Servo
Servo Case: 527, 537, 537DS, Z590, Z650, 821, 821R
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Ds821 Servo Popular Q&A
Q: Spektrum DS821 servos good for any Heli?
A: I've been using them in my Trex 600 CF and they work fine. I was building it on a budget and decided to use them. (They came with my DX7 also). I don't do any 3... Read More »
Q: DS821 Servos and the trex 600 is it safe?
A: i think the best fix for DS821's is to use a longer servo horn mounting screw, most have said that the output gear shears where it does because that's where the... Read More »
Q: JR X9303 with or without 72 oz/in DS821 digital servos?
A: does the heli put to many vibs on those deals....? i am a plane guy so this is for education purposes only! Yes. I have seen Raptor 50's flown without a problem... Read More »
Q: JR X9303 with or without 72 oz/in DS821 digital servos?
A: does the heli put to many vibs on those deals....? i am a plane guy so this is for education purposes only! Yes. I have seen Raptor 50's flown without a problem... Read More »
Q: Hello all, Do you think these JR DS821 Sport Digital servos will ...
A: I have read multiple horror stories on various forums regarding the use of DS821's in 50 sized helicopters. From what I have read, most of the time it is the ou... Read More »
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