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« on: January 25, 2016, 08:11:16 PM »
Tanmay.mathur
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Glide it up

Hi
here is config
4 x 2215 1000 kv chinese motors
30a esc
kk2.1
frame weight 400 gm
1250 mah 3s 25c lipo
auw = 900 gm
how much flight time i
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Tanmay mathur
 

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« Reply #1 on: January 25, 2016, 08:12:40 PM »
Tanmay.mathur
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Glide it up
How much flight  time i could expect as hover time ?
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« Reply #2 on: January 26, 2016, 09:12:29 AM »
Tanmay.mathur
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Glide it up
Bummp
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« Reply #3 on: January 26, 2016, 09:19:38 AM »
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what is the thrust produced ??
any spec sheet ?
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« Reply #4 on: January 26, 2016, 02:42:40 PM »
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By the time you get in air the battery would hardly have enough power. Try to increase the capacity to atleast 3000mah+
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« Reply #5 on: January 26, 2016, 06:51:07 PM »
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Tanmay in my opinion you ll get a flight time of around 2.5 to 3 Mins. Use atleast 2200mah so that u ll get flight time of around 5 mins.
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« Reply #6 on: January 26, 2016, 08:04:15 PM »
Tanmay.mathur
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Glide it up
The motors are cheap chinese those yellow 1000kv  the lipo is a 1250 mah 3s quadkopters.com lipo. 900 gm all up weight
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« Reply #7 on: January 26, 2016, 08:05:06 PM »
Tanmay.mathur
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The motors are cheap chinese those yellow 1000kv  the lipo is a 1250 mah 3s quadkopters.com lipo. 900 gm all up weight
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« Reply #8 on: January 26, 2016, 08:08:50 PM »
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1250 is way to less...wont last a min or two.....1300mAh are usually prefferd for 250 quads
Go for atleast 2200mAh
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« Reply #9 on: January 26, 2016, 08:11:04 PM »
Tanmay.mathur
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Glide it up
Could solar panels help ?
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« Reply #10 on: January 26, 2016, 08:12:41 PM »
Tanmay.mathur
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Glide it up
I live in rajasthan
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« Reply #11 on: January 26, 2016, 08:16:23 PM »
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Solar cells wont produce such amount of current unless u have resources from NASA
add another 1250 lipo in parallel
Also somehow even if u manage to get such amount of current from solarcells....the cells weight will anchor it to the ground
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« Reply #12 on: January 26, 2016, 10:20:11 PM »
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hope this helps
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« Reply #13 on: January 27, 2016, 12:44:42 AM »
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at the cost of solar cells from nasa you can get a full truck load of batteries.  so just get some bigger size battery like at least 2200mah
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« Reply #14 on: January 28, 2016, 09:00:52 AM »
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Re:
A 2200 mah can give you around 10mins of time and more if you reduce the weight to 700g. 900 is way too high. A 1200 can heat up unless its 40c or more.
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« Reply #15 on: January 29, 2016, 01:25:38 PM »
Tanmay.mathur
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Glide it up
2500 mah 
how much that'll give with a 700gm quad ??
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« Reply #16 on: January 29, 2016, 05:32:25 PM »
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first of all u need to know how much current the motor consumes for a given prop set... either do some thrust tests or search online for spec sheet of your motor
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« Reply #17 on: January 29, 2016, 06:44:35 PM »
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2500mah with 1045, ll give approx 6mins of flight time. Again actual output depends on what amount of power your motors consumes. But to be safer side 5-6 mins.
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« Reply #18 on: January 29, 2016, 07:59:22 PM »
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Read this blog post by Oscar , hope this will help you
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« Reply #19 on: January 30, 2016, 11:34:11 PM »
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If you have your specs decided I wonder weather you use ecalc.ch

It should answer all your questions and even help you decide the upgrade.

Happy Flying
-Pravin
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