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› Eagletree data logger question
10-22-2009 10:47 PM  8 years agoPost 1
FlaG8r

rrElite Veteran

Florida

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Just hooked this up tonight, did a test 1 min. flight...are Watts necessary to track/ look at? Can't make much out by looking at them and they are HIGH. When viewed on the same graph as Amps and Volts, it skews everything. Any feedback would be appreciated. Thanks.

Life is tough, it's tougher if you're stupid

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10-22-2009 11:13 PM  8 years agoPost 2
Frank Bostwick

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Cincinnati Ohio

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It depends on what is important to you. I forget the math but watts is calculated from amps/volts/Res. and is a measure, in electrical terms, of power delivered to the shaft, Horsepower if you will. The volts and amps will let you know if your system is set up right and your electronics can handle what you are putting them thru, as well as how your battery is preforming. I personally dont track watts but Im sure many do.

RIP ROMAN

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10-23-2009 01:43 AM  8 years agoPost 3
bexusflexus

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Tulsa, OK

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What FBoss said. I will add that for me I like to watch a graph of volts to amps over time. I especially look for how the battery is holding voltage over the duration of the flight. If the voltage is dropping or spiking erratically your battery might be getting weak or it is being over taxed, etc. The amperage really tells you whether your system is running within the proper parameters. For instance if you have a 100amp ESC and you are consistently pulling 130amps then there is a problem. Watts = power and is simply Voltage X Amps. Here is the watts to horsepower conversion:

1 watt = 0.00134102209 horsepower

An example of a max output of power from a Trex600esp looks something like this:

Voltage X Amps = Watts
22.8v X 100a = 2280w

Watts --> Horsepower
2280w X .00134102209h = 3.057 horsepower

Datalogger can give you some pretty cool info.

even not doing anything would have been better than nothing...

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10-23-2009 10:42 AM  8 years agoPost 4
OICU812

rrMaster

Edson, Alberta, Canada

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Also click on the small graph thingy on bottom, you can change colors, ranges and all sorts of cool things to suite your needs. Best part of logging regardless of device is it gives you real data and a new perspective on your system you are running or experimenting with.

...Once upon a time there were Nitros, flybars and frequency pins...

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10-23-2009 12:10 PM  8 years agoPost 5
Frank Bostwick

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Cincinnati Ohio

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When I first got my ET system, I spent some time on mounting it in the heli as I thought Id keep it on board indefenantly. I found that after several flights I felt that I didnt need the extra weight and clutter. Once I knew the "system" was operating like expected, I took it off. If you have the room on your install to keep it on that would be a good thing. If you religiously down loaded and kept at it, Im sure the data base collected could be very useful and help alert you when a component in the system was going south on you. Guess Im just not that persistent and didnt like the clutter. When Im having issues now I just throw it on and strap it down, takes just a few minutes. Dont get me wrong, I find it a very useful tool and would not be w/o it. I just dont think it needs to be on full time and 1 or 2 systems can work for all my birds. If Castle ever.........well lets just say that I like the idea of the new ICE esc. and once a track record is established, will use it assuming its a good track record.

RIP ROMAN

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