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Old Dec 06, 2012, 03:23 PM
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United States, CA, San Diego
Joined Jan 2011
5,157 Posts
Hey I picked 4s for the ARC 28-58-1 inrunners I will use with the 70mm CS12Blade fans, my Japanese Guru thought it the best weight to thrust option, I will use 2 x 4s in parallel, most likely 4400-4800mAhs the calcs are as follows

札幌フ 3.6x4=14.4V 14.4x3180KV=45792rpm

1750g Thrust

OHH: ok so 1750 x 2 = 3500g thrust with the 2 EDFs, that should be ok on the Su35-- I'm guessing my flying weight at about 2800g

札幌フ: 4S is lightweight.
The flight weight becomes light after all.
Therefore the airspeed becomes fast

3500gx0.85=2975g

So if I can get my flying weight to about 2800g I'll have > 1:1 thrust ratio
He also advised me I need minimum 60c LiPos with 6mm gold connectors otherwise I'll be losing current.
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