Electric Calc Question

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Mark - 27 Jun 2004 15:28 GMT

I've been flying glow RC Planes for about 6 years, got out of the hobby
for 2 yeas, and now after getting back my AMA card I'm taking a serious
look at the electrics (just to do something different). My question
currently is about how to select the appropriate electric motor for a
given plane. I have downloaded the MotoCalc evaluation software (not
used it yet but will soon) and was curious if there were other peices of
software which would benifit me. I will be building a GreatPlanes
Slowpoke 40 (when I drag it out of the movers box).

Thanks,
Mark

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mike tully - 27 Jun 2004 15:48 GMT

Go to rcgroups.com electric sportplane forum:
http://www.rcgroups.com/forums/forumdisplay.php?f=24

Register as a user and post a question regarding power reccomendations for your
specific application. You will undoubtedly find someone who has already been
through your exact project and done the necessary calculations.

The GP kits are especially portly with lots of plywood. You might want to try
a kit engineered for electric rather than a conversion for your first electric
project.

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Mark - 27 Jun 2004 21:37 GMT

Thanks, I'll do that. I still would like to convert the slowpoke
because of it's light wing loading.

Mark

> Go to rcgroups.com electric sportplane forum:
> http://www.rcgroups.com/forums/forumdisplay.php?f=24
[quoted text clipped - 6 lines]
> a kit engineered for electric rather than a conversion for your first electric
> project.

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Mark - 27 Jun 2004 21:39 GMT

> I've been flying glow RC Planes for about 6 years, got out of the hobby
> for 2 yeas, and now after getting back my AMA card I'm taking a serious
[quoted text clipped - 7 lines]
> Thanks,
> Mark

Turns out it was a Slowpoke (.15 to .25 engine). This is even better
for me (so I think).

Later,
Mark

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PCPhill - 27 Jun 2004 22:53 GMT

> Turns out it was a Slowpoke (.15 to .25 engine). This is even better
> for me (so I think).
>
> Later,
> Mark

Cheaper, for sure. I like the AXI motors that make for a pretty simple
conversion. Have a look at them here.

http://www.hobby-lobby.com/brushless_axi.htm

You'd probably need a 2814 or 2820.

Good Luck,
Phill

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Ted Campanelli - 27 Jun 2004 23:10 GMT

On 6/27/2004 10:28 AM Ted shuffled out of his cave and grunted these
great (and sometimes not so great) words of knowledge:

Go to E-Zone http://www.ezonemag.com/ and look in the Sport Plane
section (also do a search there). This is where the discussions for
conversions are.

The 2 biggest pieces of information you will need for MotoCalc, is the
weight of the AIRFRAME ALONE and how you want it to perform. MotoCalc
can even make recommendations on motor, battery, prop and gearing for you.

> I've been flying glow RC Planes for about 6 years, got out of the hobby
> for 2 yeas, and now after getting back my AMA card I'm taking a serious
[quoted text clipped - 7 lines]
> Thanks,
> Mark

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The Natural Philosopher - 29 Jun 2004 02:15 GMT

> I've been flying glow RC Planes for about 6 years, got out of the hobby
> for 2 yeas, and now after getting back my AMA card I'm taking a serious
[quoted text clipped - 4 lines]
> software which would benifit me. I will be building a GreatPlanes
> Slowpoke 40 (when I drag it out of the movers box).

www.ezonemag.com

There are lots of bits of software around - P-calc, Eletricalc, some
online motor simulation softare, MUMTATS - you name it someone has done it.

> Thanks,
> Mark

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Model Forum / Radio Controlled / Air Models / June 2004

Electric Calc Question