Re: R/C solar-powered sail boat project
From: Charles Jean (alchemcj_at_earthlink.net)
Date: 08/08/04
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Date: Sun, 08 Aug 2004 10:47:09 GMT
On 8 Aug 2004 01:40:07 -0700, wanghes@hotmail.com (John_Lee) wrote:
>I've just completed building a fairly long sail boat, a
>radio-controlled boat, which is to be powered by both batteries and
>solar panels, along with the help of the wind. I'd like to use
>separate flexible solar panels, they are extremely light in weight, to
>power one small DC fan and one bigger DC fan. Here are the
>specifications of those fans: small fan (Rated Voltage: 12VDC, Rated
>Power Current: 0.15 Amp, Rate Power Consumption: 1.8 W); big fan
>(Rated Voltage: 12VDC, Rated Power Current: 1.0 Amp, Rate Power
>Consumption: 12.5 W). These fans will be placed in a way that they
>blow air at the sails, thus propelling the boat. I would like to sail
>this boat for 5 hours non-stop.
>
>My question: based on the specifications of the fans, what are the
>sizes for the solar panels (in terms of Rate Power Consumption) for
>the small fan and the big fan? Thank you.
>
>John.
___
If you are trying to do what I think you are trying to do, you'd
better reread Newton's third law. Will the fans be attached to the
boat?
___
GRAVITY:
It's not just a good idea-IT'S THE LAW!
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