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Old Oct 14, 2008, 11:18 AM
Registered User
Joined Oct 2008
4 Posts
Servo Futaba S3801 Heavy Duty Arm Type Sail Control

They know that with this amp must be used Servo.
This is the technical information that I found:

SPECS: Torque: 156 oz-in@4.8V - 194 oz-in. @ 6V
11.2 kg-cm@4.8V - 14.0 kg-cm @ 6V
Transit Time: 33 sec/60 @ 4.8 Volt - 26 sec/60 @ 6V
Arm Travel: 125 (under optimum conditions)
Length: 2.4 "(61mm)
Width: 1.2 "(30mm)
Height: 2.0 "(51mm)
Weight: 3.7oz (107g)

Thank you
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Old Oct 14, 2008, 11:55 AM
Useful Idiot
Asturias, Spain
Joined Mar 2001
3,557 Posts
Hola Carlos, I'm guessing that you're interested in the current under load of the servo. Manufacturers don't usually give this in their technical specs. But I have a boat of similar size to your ETNZ with a servo of similar power and the 5xNiMH power pack seems to provide enough amps for the servo.
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Old Oct 14, 2008, 02:38 PM
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Joined Oct 2008
4 Posts
Martin thank very much.
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Old Oct 14, 2008, 03:30 PM
Norman2's Avatar
Connestee Falls, Brevard, North Carolina
Joined Mar 2006
392 Posts
Servo 3801

Use a 3802
PS A little less torque at 6 volts but more speed
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Last edited by Norman2; Oct 14, 2008 at 03:36 PM.
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Old Oct 16, 2008, 01:34 AM
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Joined Sep 2006
855 Posts
current usage is very low. You can get a days sailing out of a set of batteries. It is not like using a motor running a prop.
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