Electric Pattern

[Don Livermore]

Gary,
That is great information and a lot of it..Thanks, Don Livermore
----- Original Message ----- 
From: "gwright" <gwright at cfl.rr.com>
To: <discussion at nsrca.org>
Sent: Tuesday, August 05, 2003 8:52 PM
Subject: RE: Electric Pattern


> Its a hacker C50 acro motor, I think they finalized on the 13 turn motor.
> It's geared 6.7 to one, and he's using 10 series, 3 parallel thunder power
> lithium polymer batteries. That comes to 42 volts unloaded, the fai max I
> believe, and at 68 amps at full throttle it's about 34 volts, or
equivalent
> to 35 or so nicad/nimh at that level. Total capacity is 6150mah and flight
> time is about 20 minutes. At first, 4-parallel were being used, but since
> close to 1/2 hour flights weren't really needed <G>, they went down to 3
> parallel and tested to see that the packs could handle the loading, which
> they can. full throttle is 2300 watts, which equates to a bit over 3
> horsepower, but with the larg prop, thrust is far better than you get with
a
> lot more horsepower with a "little" 18 inch prop.  Lots of research went
> into this, and a couple of us have been testing the C50 motors for almost
a
> year (I flew one of the originals in my funtana at the TOC demos). I'm
using
> the thunder powers in most everything, so 20 to 30 minute flight times
with
> my 3D planes is common (some are 48" span, "40 size", and some are 80~88
> inch span, so they're not little parkflyers).
>
> -----Original Message-----
> From: discussion-request at nsrca.org
> [mailto:discussion-request at nsrca.org]On Behalf Of Henderson,Eric
> Sent: Tuesday, August 05, 2003 9:23 PM
> To: discussion at nsrca.org
> Subject: Electric Pattern
>
>
> I would be most interested in which  cells being used and which Hacker. I
> have a fairly capable electric pattern but it only lasts 5 minutes on 20
> cells..
>
> Also charging of the li-poly's? is not known to me etc..
>
> Eric.
>
>
>
> -----Original Message-----
> From: discussion-request at nsrca.org
> [mailto:discussion-request at nsrca.org]On Behalf Of Zapata, Lisandro
> Sent: Tuesday, August 05, 2003 5:40 PM
> To: 'discussion at nsrca.org'
> Subject: RE: Poland - electrics
>
>
> Who said that electric technology is not proven:
> check Jason 'fliying silent'
> http://www.rccraze.com/newpattern.mpg
>
> What I see is more than enough power. which is what mater for power plant.
> Arturo
>
> -----Original Message-----
> From: juhler at bellsouth.net [mailto:juhler at bellsouth.net]
> Sent: Tuesday, August 05, 2003 3:49 PM
> To: discussion at nsrca.org
> Subject: re: Poland - electrics
>
>
> Dave,
>
> Yes.  They are there cause how well they flew.  What I am saying is, I
think
> it is wrong for them to use proven method's to get to the show, then
switch
> out equipment to highlight a new technology or to meet sponsor needs after
> getting there.
>
> I guess basically what I am saying, is; it is not fair to the guys they
beat
> out by using their normal equipment, then risking a poor showing at the
> world to display new technology.  If the new technology is such a good
idea,
> and will not hurt them performance wise, then use it to get to the worlds,
> not just at the worlds.
>
> Just my opinion.
>
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