ungawa
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any pointers on how to figure out flight time, weight, power, etc

Started this discussion. Last reply by Alberto Vila May 1. 9 Replies

I am new to all this, and trying to figure out how to do rough calculations for drone configurations.I'd like to be able to look at some motor spec sheets ... like this U15II monstor…Continue

 

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Alberto Vila replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"o wow, fantastic page, nevertheless i also like to do it my self ,"
May 1
Checkers replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"Use Ecalc. Does exactly what you're asking for and much more. "
Apr 30
Alberto Vila replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"Excuse me, i went to sleep. I mean, Yea why not. its gone cost you some dollars but, yea it sowld work more or less. If you test it , please show video :)"
Apr 27
ungawa replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"Also ... you mentioned ... “so 36x4= 144 kg, are you going to ride that drone your self” I am actually most interested in flight time ... and trying to figure out what it takes (or if possible even) to lift 5 pounds for 6 hours !!!!"
Apr 26
Alberto Vila replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"mmmm ... i think you are kind of confuse, if you put 2 batteries in series, you double the voltage but the capaciti stil the same, only when you put 2 batteries (cells) in parralel the output capaciti is doubles.. chek this…"
Apr 26
ungawa replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"I have been watching the videos you recommended ... very interesting indeed. Is this math at all on track ... - the U15 ii motor uses 19.9amps at 50% throttle generating 8900g of thrust (with the recommended huge prop) - each of those samsung…"
Apr 26
Alberto Vila replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"well im not an expertise onbatteries , but i think i can say that: those tipe of li-ion battery cells can have dischargue ratings even more higher than li-po bateries the energy densiti it apears to be a little more higher,, so in the same mass you…"
Apr 26
ungawa replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"Excellent info ... will take a bit to digest ... .english was fine FYI ! I don't see much discussion of using the bunch-o-battery configuration, like tesla and impossible-aerospace.  Is this because it is hard to get the discharge rate…"
Apr 26
Alberto Vila replied to ungawa's discussion any pointers on how to figure out flight time, weight, power, etc
"well , let me give you some advices first of all , sorry for my english 1º you ned to sume the total max power of your motors. for one motor and apropiated blade, the motor in function of the powe imput will produce a specific push or…"
Apr 26
ungawa posted a discussion

any pointers on how to figure out flight time, weight, power, etc

I am new to all this, and trying to figure out how to do rough calculations for drone configurations.I'd like to be able to look at some motor spec sheets ... like this U15II monstorhttp://store-en.tmotor.com/goods.php?id=731and figure out with 4 motors with the prop referenced in the spec sheet, what kind of battery is needed to keep it in the air for 30 minutes.  How does that change with a 5lb payload.Any pointers to good articles…See More
Apr 25

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