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Other › My T-Rex with 10,500 mAH can fly forever!
04-02-2005 05:24 AM  13 years agoPost 1
Jarod

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USA

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What do you guys think? Should I give it some flight tests. It only weighs 1,280 grams.


Would anyone care for some helicopter with there batteries.

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04-02-2005 05:34 AM  13 years agoPost 2
mini_zoom

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Yorba Linda, CA USA

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Add some solar cells to the blades..LOL

Alvin

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04-02-2005 05:43 AM  13 years agoPost 3
Jarod

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USA

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Would a 15 cell setup be to much, 55.5 volts. What speed controller would I use for that much voltage? Heck might as well make it 110 volts and hook up my TV during power outages. Ok Ok I have to much time on my hands.

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04-02-2005 05:48 AM  13 years agoPost 4
mini_zoom

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Yorba Linda, CA USA

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Will this work: Jeti 150 Amp Motor Control ..... $ 115.90

http://www.hobby-lobby.com/jeti.htm

Alvin

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04-02-2005 05:53 AM  13 years agoPost 5
MJWS

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Airdrie, AB - Canada

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To get 10,500 those packs will be in parrallel. So the voltage will still be 11 volts.

However should you choose to try the ultimate in HV with the 15S1P you've got loaded up. I think there are a number of Kontroniks that will get you by.

Hmmm 55V. Burst them to 25Amps. Yep with 1350 watts or so you should be fine. The roughly 500w/lb will even make the big block 30's look pathetic. Forget about flying 'Forever' go UltraHV

Mike

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04-02-2005 05:53 AM  13 years agoPost 6
Jarod

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USA

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It doesnt say how many volts anywhere? But 140 amps, I cant imagine a T-Rex with that kinda punch.


Jeti Motor Controllers

8 to 30 cell controller for up to 140 amps
For 8-30 cells, 140 Amps continuous current, no BEC, has current limiter protection that stops motor if it is blocked, on/off brake, adjustable pot for motor start point, LED for brake set, off, and max power, 2400 Hz. switching frequency, 1-7/8 oz., 51x30x10mm

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04-02-2005 05:55 AM  13 years agoPost 7
Jarod

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USA

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Your right, in parrallel the voltage would still be the same. Well it was an interesting thought at liest.

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04-02-2005 05:58 AM  13 years agoPost 8
mini_zoom

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Yorba Linda, CA USA

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I think you will fry the motor in less than 5 seconds...

Alvin

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04-02-2005 06:04 AM  13 years agoPost 9
MJWS

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Airdrie, AB - Canada

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Nah, A nice little 20 amp outrunner with a KV in the 500 range and you'll be fine. It shouldn't Bog, but the disc loading might be a little undesireable

Mike

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04-02-2005 06:33 AM  13 years agoPost 10
RC_Hobbies

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Canada

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I don't think your heli will even take off the ground. To lift a heli of this weight, you will need at least 4S or even 5S packs. If you re-arrange your LiPo cells and make a 5S3P pack, I think it will fly.

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04-02-2005 03:16 PM  13 years agoPost 11
Gary Hoorn

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Annapolis Maryland USA

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If you hook all of those batteries in series it will be a race to see who is first to inform you of its displeasure by letting it's smoke out, the Himax or the ESC
Gary

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04-02-2005 09:50 PM  13 years agoPost 12
MFIS

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The Netherlands

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LOL! You must have been bored Jarod.

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04-02-2005 09:57 PM  13 years agoPost 13
Jarod

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USA

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I was thinking of a way to fly it over the Atlantic. I want to be the first person to fly a EP heli accross the Atlantic ocean from Florida. I have an idea AnnihilaT when it gets to the Netherlands turn on your transmitter with channel 59 and you can bring it in for a landing. Ill get it going in your direction and program it to stay on course. Go outside in the morning and let me know if you see it.

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04-02-2005 09:59 PM  13 years agoPost 14
MrMel

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Gotland

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If it accently ends up in sweden I will let you know

:-)

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04-02-2005 10:01 PM  13 years agoPost 15
Jarod

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USA

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ROTFL

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04-02-2005 10:04 PM  13 years agoPost 16
Jarod

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USA

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You know they actually have done this a couple of time with RC planes. I ready an article where they converted a 2 stroke to run on propane. They got in on course and there was a guy in Ireland I think it was. Here is the link. Im not sure if this is the same one I read about a few years ago.

http://tam.plannet21.com/

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04-04-2005 11:21 AM  13 years agoPost 17
pquintens

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Belgium

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For sure, you will be able to race against a F16 !!!!
PQ.

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