I have ordered and received two pieces *
one do not work ! like if i don't put in the test servo or to the radio receiver !
One continue ti weep ! AS SOON THE SECOND SERVO RECEIVE THE 12 VOLTS,
IT CONTINUE TO WEEP
El corona 939 es tremendamente bueno en su funcionamiento y confiabilidad, son de los mejores servos que he usado, sin embargo la parte por donde se atornillan se rompe muy fá*cil, ojala el fabricante corrigiera esa debilidad, así* el servo seria imbatible!
My CS939's cause ANY of my hxt 900/500's to become very erratic/uncontrollable when attached to the same receiver.
Oddly ONLY the hxt's do this, other cheapy 9 gram HK servos: white, white with black gear and Orange, both analog and digital.. work perfectly. Weird.
I think the weight is always without cable and connector... *)
I recently used 3 of these for cyclic on an HK450V2 kit. The performance was impressive for the cost of this servo. The torque is adaquate, the speed is decent, and they center pretty good for a MG servo. The spline on these can accepts Align DS4 servo arms so that is an added bonus. I bought 8 of these in my order and they all worked without problems. I will be buying more of these in the near future. Very good product HK!
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these servos are very fast. they are so responsive, i jerked the stick around very fast and the momentum of the metal gears oscilating knocked the servo over. amazing servo. causes my hxt900's to jitter like crazy when near them.