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Futaba-RC . Boca Bearings . XHELI.COM

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Aerial Photography and Video > Battery backup system
 
 
daggit
Elite Veteran
Location: Waseca MN

My Posts This: Topic  Forum
interesting

wow, you mean NO batteries at all? Not just a generator to keep packs charged? but ELIMINATE batteries all together?

will there be a reliability issue?
03-06-2004 Over year old.
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ELOSSAM
Veteran
Location: Es

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I hope not all. Other way if you engine quits in flight better go home and came back the next week for the pieces. I suppose you need a little bat to stabilize the current, to give the required amperes and as a backup for the battery backup.
03-06-2004 Over year old.
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AcesAreWld
Senior Heliman
Location: NJ Shore

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No No Dag...

I will have a small 1500 Mah pack for startup, low rpm idling, and if the engine / generator ever fails. I have a SUPER BRIGHT LED on my battery backup system now that I can EASILY see in the sunlight, and if the main pack drains to the point where the backup pack is used I can see that light comes on. On this system, I wll still use that setup but also the camera man's wireless downlink and servos for his pan/tilt/etc control will all be powered by the generator ONLY. This means I will know if there is a problem because his wireless downlink will go black and he will lose pan/tilt contorol. My helicopter controls will switch to battery backup power in that instance and I will land immediately.


...I hope...



--Geoff
"Aces Are Wild"
www.rchelicam.com
03-06-2004 Over year old.
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daggit
Elite Veteran
Location: Waseca MN

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Sounds cool!

I have a super bright green led on my Raptor, works good! In fact you have to cover it for night flying cuz it's too bright for that (blinds ya)
03-06-2004 Over year old.
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TopView
Senior Heliman
Location: The Netherlands

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Generator setup

Hello malorie,

Could you post a couple of pictures showing your setup of the generator, I am thinking of putting it on my new Twin.

Thanks, rene NL
03-07-2004 Over year old.
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RotorMarc
Senior Heliman
Location: Dearborn area, Mi

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I was wondering how much power can be made from the two GV-1 magnets? Why not use these? Anyone remember the formula for coil windings?

Marc
03-07-2004 Over year old.
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AcesAreWld
Senior Heliman
Location: NJ Shore

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I'm pretty sure (99.999999%) that the GV1 idea will not work, here is why. The coil is shaped so that when the maget is placed over the CENTER of the coil, there are two other magnets spaced perfectly around the outer metal "horse-shoe". This makes a magentic field with the "horse-shoe" that the MIDDLE electromagnet is then inside, and the rare-earth magnet passing over the electro magnet at that time is the OPPOSITE pole as the two creating the field on the horse-shoe. That was prob. the worst explanation I could have made, but they are spaced out in a certain way that needs to be like that. They are also in a north-south-north-south pattern in order to correctly build the magnetic fields.

That is why the GV-1 idea won't work... I was at my machineist's house today and we worked out two different ideas for mounting to the G-23 engine. Depending on the information I get when I call the engineers tomorrow, we will decide what one is best. One of them uses stock parts and modifies the base of the G-23 engine.. we could prob. sell kits to convert anyone's helicopter with a G-23 into one that retains the pull starter and also has this generator (with up to 4 coils, 20 watts) attached. The other method involves drilling out the fan for each magnet on a larger circumferance than stock while maintaing the spacing (by adding two more magnets)... we'll see what happens!

If this post made NO sence, then its because I really shouldn't drink and type.. and think..


--Geoff
03-08-2004 Over year old.
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AcesAreWld
Senior Heliman
Location: NJ Shore

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update

update...

Hey, I am going to put the rest of my updates and desgins and stuff here:

http://www.runryder.com/helicopter/p689020/#p689020

I want to try and keep all my posts for this generator in one location.

Thanks,
--Geoff
"Aces Are Wild"
www.rchelicam.com
03-11-2004 Over year old.
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