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« on: August 19, 2012, 09:02:07 AM »
avigyan.chatterjee
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Is there any kind of mathematical calculation to estimate the overall weight of the rc aircraft from the battery current rating and c rating?
   Actually if i want to use a lipo battery of 7.4v / 850mah / 5c , then what should be the aircraft size and weight?

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« Reply #1 on: August 19, 2012, 09:10:28 AM »
avigyan.chatterjee
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is there any kind of mathematical calculation to estimate the overall weight of the rc aircraft from the battery current rating and c rating?
   actually if i want to use a lipo battery of 7.4v / 850mah / 5c , then what should be the aircraft size and weight?
actually i could not any such kind of mathematical formula for this purpose. and the above battery could not provide sufficient trust for my cesna of 450gm .
« Last Edit: August 19, 2012, 01:09:26 PM by avigyan.chatterjee » Logged
 

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« Reply #2 on: August 19, 2012, 01:09:27 PM »
KALYANPRODHAN
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You can draw maximum 7.4 volt x (0.85 x 5) A of power from battery
                                = 7.4 x 4.25 watt
                                = 31.45 watt

That mean, with efficiency taken care of every stage, 20 watt max. you can draw.
Therefore, 100gm maximum your plane AUW (not for acrobatics, just floater one)
and 55gm youu AUW(All Up Weight) for acrobatics if I am not wrong.

Details given in previous threads, Please search.

Where are you from Hooghy? near hooglyghat Station, Pipulpati Xing ?
Please contact me. I will be happy.
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« Reply #3 on: August 19, 2012, 01:12:19 PM »
avigyan.chatterjee
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plz tell me what is AUW
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« Reply #4 on: August 19, 2012, 01:14:56 PM »
avigyan.chatterjee
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yes i am from bhadreswar ---4 station before from hooghly
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« Reply #5 on: August 19, 2012, 01:16:13 PM »
KALYANPRODHAN
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All Up Weight = Airframe weight + Electronics + Engine + fuel weight
or simply weight with everything.
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« Reply #6 on: August 19, 2012, 02:01:18 PM »
avigyan.chatterjee
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my mob. no. is 8902229025. when you will come to your sister's home plz call me . i will meet with you.
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