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Old 03-06-2011, 10:25 PM   #1
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Default Newbie - I Need Help With Eflight Calculators

I just joined this board a few days ago because I'm finishing a Top Flight DC3 but decided at the last minute to go electric rather than glow. Never flown with electric before.

I previously posted this thread on the wrong board (General Discussions) so I thought I would repost on this board.

I've been surfing this and other boards for the best way to power this "plank" resulting in lots of confusion. There seems to be varying opinions on web based and downloadable calculator software. I've downloaded MotoCalc for the 30 day trial period and, although seemly somewhat complicated for a newbie, I've spent hours playing with different motor/battery/prop configurations and come up with some that seem like they could work.

Here's my question - Is MotoCalc the best way to go for me or are there other calculators that any could recommend?
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Old 03-07-2011, 12:17 AM   #2
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I am more comfortable with Electricalc. It does not display as much data that I don't need or use. Others love Motocalc and it is good. There are others out there but they don't seem to deal with the plane. They seem to be fine for the power system only. Try them. Most are free. Motocalc and Electricalc cost a small amount.
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Old 03-07-2011, 12:25 AM   #3
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A good calculator a lot of folks sing the praises of, and affordable.
http://www.drivecalc.de/

Also a web based calculator that I use regularly to get me into the ball park. Gets pretty darn close to the actual outcome of my setups.
http://adamone.rchomepage.com/calc_motor.htm

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Old 03-07-2011, 01:36 AM   #4
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It's one of those 6 of one/half a dozen of another things. Try em all, see which one that works for you. But always double check on different programs to see if they agree.
Sometimes you may find one has a bug that throws off the results, which could be disastrous.

And always final check with a watt meter once you have your choice in place.

Oh almost forgot, check the forums for like kind birds. See what they used on theirs, and what worked out and what didn't.

When I die, I want to go like my Grandfather did, in his sleep...... Not screaming like the passengers in his plane.
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Old 03-07-2011, 01:41 PM   #5
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Choose your props to suit the plane, then choose motors to drive them.

The prop is much more important to flying the plane, and should be selected for successful flying first, and looks, second. Multi blade props only look good when the model is not flying.

Ray in Wales
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Old 03-07-2011, 03:12 PM   #6
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Also, as Glacier Girl mentioned, look for similar threads and models.

Here's one, Top Flite DC3 Conversion, - http://www.rcgroups.com/forums/showthread.php?t=1120200

Ray in Wales
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