[NSRCA-discussion] Electric Pattern

Thu Mar 6 14:28:33 AKST 2008

Mike,

What are the Chinese motors you reference "I have found some very cheap
chinese motors that work as good or better than what we can get over here
from the more established companies. Some combinations are really cool,
especially in the 110 range. You're looking for around 1600-2000 watts,
motor weight about 500 grams or less, about 250-300kv, and using 8s packs.
Lethal =) And fairly inexpensive."

Tim

  _____  

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Mike Hester
Sent: Wednesday, March 05, 2008 11:10 AM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Electric Pattern

For pattern a good rule of thumb is 150 watts per pound. A better rule of
thumb is closer to 200 watts per pound. 

It takes a lot of experimentation to find the right combination, sometimes
what looks great on paper doesn't work all that well in application. 

What you're looking for is more than you "need". this way when you push it
in bad conditions, you don't burn it all up.

I have found some very cheap chinese motors that work as good or better than
what we can get over here from the more established companies. Some
combinations are really cool, especially in the 110 range. You're looking
for around 1600-2000 watts, motor weight about 500 grams or less, about
250-300kv, and using 8s packs. Lethal =) And fairly inexpensive.

Then you just have to figure out whether you want to turn a large prop slow
or a small prop fast. Somewhere in there, you hit the magic for the
particular plane. 

But if you want "established", the E flight power 110 is ok, and the Axi
4130-20 works. Don't get the -16 turn axi as it won't handle 8 cells and
won't deliver quite enough power.

-Mike

----- Original Message ----- 

From: John <mailto:johnferrell at earthlink.net>  Ferrell 

To: NSRCA Mailing List <mailto:nsrca-discussion at lists.nsrca.org>  

Sent: Wednesday, March 05, 2008 12:51 PM

Subject: Re: [NSRCA-discussion] Electric Pattern

I am not picking on Incheon here, the questions are to all:

I too, am struggling to understand how to select appropriate power for a
given airplane.

The specs for the ElectriFly 110 call for up to a 15 pound airplane, It
sounds like a lot of Watts for an 8 pounder.

A Phoenix 80 controller also sounds like a lot of over kill. Can I assume
that the electrics can just be run at a lower power setting and less
batteries without overburdening the airframe?

Which AXI would be interchangeable with the Electrifly 110? 

Would the Dualsky XM5060CA be an equivalent? The advertising indicates 1:1
correspondence to a YS 110.

Is the following comment True or False?

It seems that an over spec motor and speed control are only a financial
mistake. Flying at reduced power levels is not a technical flaw and in fact
may provide a more reliable power setup.

John Ferrell    W8CCW

"All that is necessary for the triumph of evil is for good men to do
nothing." -- Edmund Burke
http://DixieNC.US

----- Original Message ----- 

From: Ihncheol <mailto:pnahobbies at sbcglobal.net>  Park 

To: NSRCA Mailing List <mailto:nsrca-discussion at lists.nsrca.org>  

Sent: Monday, March 03, 2008 8:57 PM

Subject: Re: [NSRCA-discussion] Electric Pattern

Jay,

Lots of power setups available.  It all depends on how much you want to put
in.

Hacker A50,  E-Flite 110, Axi,  BPHobbies,  Welgard, Dualsky, Neu, Hyperion,
etc.

For a reasonable price, E-Flite seems to be a good choice with Castle Phx 80
or E-Flite 60 may also work.  I went with E-Flite 110 for Inspire 90 because
I couldn't install the YS110 on it.  

Hacker, Axi are very good, but I was told these make a little noise during
the run.  Not sure what that noise is.  

Hyperion runs really good too.

I can look up if I have spec on Focus 110.

Ihncheol

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