zxmike1
04-15-2007, 07:29 AM
I installed the Spectrun SX7 with DS821 servos in my Hurrican. I was warned on Runryder that this was a bad move...That DS821 servos are only meant for 30 size heli's. Is there any truth to this. I know lots of other heli flyer's that are using these servos and have no problems.
Is there anyone out there using these servo's (DS821) in there Hurrican?
Thanks :arggg:
BarracudaHockey
04-15-2007, 07:46 AM
New Guidelines for DS821 Servo Use
Tuesday, February 20, 2007
The DS821 servo is a powerful, accurate sport digital servo recommended for RC airplane applications up to 1.20-size. For helicopters, the DS821 operates best with 30-size glow models, and up to 50-size electric. Loads and vibration in larger models may cause premature failure of the servo resulting in damage or injury to property and persons.
Important: Do not use liquid thread lock with the DS821 servo!
Do not use any form of liquid thread lock to secure the servo arm screw to the output shaft of the DS821 servo. Chemicals in these liquids react with the polycarbonate gear set causing the plastic to become brittle, fracturing the final output gear.
They make a nice throttle servo.
Foxden
04-15-2007, 10:30 AM
Mike,
They won't hold up in our Nitro 50 size ships.