View Full Version : dx7 servo's
jackp1
10-16-2007, 03:19 PM
will the servo's that come with the dx7 spectrum be ok in a trex 600 or are they no good or to small?
fllyer
10-16-2007, 11:15 PM
They should be ok to use, but there are a lot better servos to use (not to mention faster).
BarracudaHockey
10-17-2007, 05:19 PM
Don't do it. Get decent servos, the cost of a crash due to the output shaft shearing off or the things croaking will meet or exceede the cost of decent servos aka 9252, 9451 and several JR models
jackp1
10-17-2007, 06:03 PM
thanks for that i never realised they were that bad im glad i asked cheers
Helifarns
10-20-2007, 10:06 PM
will the servo's that come with the dx7 spectrum be ok in a trex 600 or are they no good or to small?
Are they DS285's??? Sell em to a 450 guy!! :thumbup:
BarracudaHockey
10-21-2007, 09:17 AM
I'm assuming we are talking 821s, if you are talking about the 285s then they are too small and weak for a 50 size.
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.
jackp1
10-21-2007, 12:38 PM
im not sure what the servo's are called, i no they come with the dx7 i think im gonna switch to futaba servo's so i dont have any unneccesary crashes