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Old Apr 13, 2012, 10:37 AM
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Jack
USA, ME, Ellsworth
Joined May 2008
18,096 Posts
Quote:
Originally Posted by FASTBEN View Post
thanks for the info,but boy its complicated.
my setup at this time on my spider 2.5m is
Hyperion HP-z 3025-10
Hyperion 80a with cool BEC
15x10 aeronut
2x3s 2500 25c GEN ACE in par.
my watt meter shows 1090 watts @ 90 amp
i needed to find out if with changing prop i can keep the amp with about 1200 watts.
thanks
ben
Your results are interesting. But I think something might be wrong with your setup. Do you have the batteries in series or in parallel?

You are getting a 90A load with an input of 1090 Watts. Do you happen to know the RPM?

The Aeronaut diagram for the 15 x 10 folder shows that prop using 650W at 6,500 RPM. And the Hyperion test data for your motor on 3S and with a similar sized, but slightly smaller and non-folding prop, as:

APC 158E
3 cells
10.05V
51.1A
514W
6270 RPM

I can't understand why you are getting current readings that high, but you are already well over the 65A Max Current rating for that motor and I would think it would be overheating now.

I have used a few folding props, none that large through, and have generally found them to draw similar amounts of current to what would be drawn by a similar sized fixed prop.

Jack
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