EMAX ES08D Servo

Specifications

Modulation:	Digital
Torque:	4.8V: 27.77 oz-in (2.00 kg-cm)
Speed:	4.8V: 0.09 sec/60°
Weight:	0.30 oz (8.6 g)
Dimensions:	Length:1.26 in (32.0 mm) Width:0.45 in (11.5 mm) Height:0.95 in (24.0 mm)
Motor Type:	(add)
Gear Type:	Plastic
Rotation/Support:	(add)
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	JR

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blacknoise

February 10, 2012

Rating:

Application(s): cyclic on a Trex 250 clone. Also, used on a small Pitts bi-plane.

Comments: On the positive side, the ES08D has a very smooth movement and fine-detail to the control. Much more precise than the HXT-900, for example. Really, the servos do work quite well for a while.
On the negative, the potentiometer and/or its circuitry is poor. The servo chatters and buzzes very easily, resulting in heavy wear to the pot and gears. Thus, the negative is that they fail rather quickly.