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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #1  
Old 12-29-2006
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autopilot amp usage

Ok I'm sizing my battery banks and doing an amp usage inventory. The autopilot specs from Raymarine indicate that the S3 core pack uses between 30 and 40(peak) amps. so running my autopilot for 2 hours would burn between 60 and 80 amps? Am I looking at this right?
Any thoughts

Dave
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Old 12-29-2006
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that is peak while its trying to crank over in a hard sea.. reality is much lower. it comes down to usage. When you are in open seas you can switch down the sensitivity to also save on amps.
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Old 12-29-2006
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camaraderie is a jewel in the rough camaraderie is a jewel in the rough camaraderie is a jewel in the rough
More typical average use is 6-8AMPS depending on boat and how it tracks.
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questions

How big is your boat ?
what is the displacement.
are you using the s3 or the s3g.
what type of drive are you using?
hydraulic, linear, or rotary?
is it a type 2 or type 3 drive?
where do you plan on sailing?
fair winds,
eric
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Old 01-02-2007
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Kimberlite
To answer your questions

Hunter 49
Displacement is approx 34000 wet
S3g
Drive is a Lewmar Mamba Drive motor (4 amp draw)
Crusing area is mainly East Coast from Maine to Florida
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