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Solar Cells

Old 07-19-2007, 03:18 PM
  #1  
jeholliday
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Default Solar Cells

I have ben reading all the posts on this great forum and I wondered if any one has lately tried the solar cells again. It has been quite a few years ago that I remember someone trying them on a plane for an endurance attempt with an RC model. Can't remember the year, but, I think they were used mainly to keep the batteries charged in the plane. Of course it was glow powered. Has anyone tried solar cells on an electric motor? DOC Holliday
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Old 07-20-2007, 03:11 AM
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egens1
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I dont think there is any I know of. Solar cells dont have effeciency above 6.5% and they are heavy.
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Old 07-20-2007, 06:37 AM
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batman
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I read about a glider that successfully used solar cells about a year or so ago. But it started with a full battery and the solar cells kept topping up the battery as it flew. Can't remember where I saw this.
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Old 07-20-2007, 06:56 AM
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bargainbin2
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Default Solar powered RC

http://www.nasa.gov/centers/dryden/n...-034-DFRC.html
Here you go a solar powered RC aircraft.
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Old 07-20-2007, 09:29 AM
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I wonder...maybe it couldn't hurt to have a solar setup on one's TX. -Rod-
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Old 07-20-2007, 02:28 PM
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jeholliday
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Originally Posted by egens1 View Post
I dont think there is any I know of. Solar cells dont have effeciency above 6.5% and they are heavy.

You haven't seen the site that bargainbin2 has posted. Old cells 14% and new cells 19% efficiency rating on the solar flying plane of NASA. Also with electric power you don't need the finish like the gas/nitro planes. They can be built lighter to take the weight of the batteries. The only limitation is the batteries in the radio system. DOC Holliday
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Old 07-21-2007, 12:58 AM
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batman
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Yeah, I was discounting that NASA thing because I thought we where talking about solar cells available to we mere mortals. Even if those cells were available they would be hellish expensive. Having said that we have come a long way in solar cell technology in the last few years or so and maybe it would be worth looking into in a few years time for ordinary modellers. Doubt that we will ever power sport models with them but one never knows.
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Old 07-21-2007, 06:03 AM
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Hey, what about solar cells to power a charger? It would be great not having use another battery......
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Old 07-21-2007, 06:11 AM
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Just bring the girlfriend or wife along and make a peddle powered generator. You get the power you need to charge the batteries and they get the fat burning workout they need. See, you can get the old ladies involved in your hobbies after all!
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