EA Digital High Voltage ST-40BF 40KG Brushless Servo

We have tested these in numerous aircraft for the last 3 years.  These servos have proven to be some of the best.  Pablo and Scott use them personally in all of their aircraft.  After 3 years of use we can say that we have had zero failures.  No twitching, no weird ratchety movement either.  Very smooth and perfectly centering servos.  We trust them enough to put our name on them and back them with a limited warranty.  Great for any size jet, all the way up to the Havoc!