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11-12-2005 05:49 PM  14 years ago
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Max 3D

rrApprentice

London

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Does any one no
Does any one out there no how much current (amps)HS 56 and HS 55 servos are capable off ?
Im going 14.8v on standard Align 35esc so far had 4 flights without problem. Manual says it will only support 2 servos! but it does not say which type off servos. eg full size servos draw more amps than HS56 and digi even more. Peak BEC current is 2A on ESC.
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11-12-2005 06:06 PM  14 years ago
MikeInMobile

rrElite Veteran

Mobile, Alabama

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The amount of current drawn by a servo is directly proprtional to the speed and amount of the servo's movement. Cyclic servos do not move fast or erraticly, so the power consumption for these is fairly low, but the tail servo is another story. Since all of the movements by the tail servo are rapid, the power consumption by this servo can be quite high.

Because of these factors, you cannot say exactly how much current a servo will draw. The HS-55 does, however, draw a lot less current than the HS56. This is due to the gearing inside of the servo. Generally, the higher the torque and speed, the higher the power consumption by the servo. Since the HS-56 has a much higher torque, it stands to reason that the power consumption of this servo will be higher.

On any 4S setup, it is generally advisable to use an external BEC. This helps to reduce the temperature of the ESC, and guarentees that the receiver will have a stable input voltage.
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