e-power

edbon85 at optonline.net edbon85 at optonline.net
Thu Aug 7 09:50:54 AKDT 2003


Ok, have to ask. How many Americans does it take to charge an electric powered pattern plane in Poland ??? : )
Ed M.

----- Original Message -----
From: JOddino <JOddino at socal.rr.com>
Date: Thursday, August 7, 2003 12:45 pm
Subject: Re: e-power

> The one with the highest horsepower at a given speed will have a 
> higher torque at that speed by definition.  Electric motors tend 
> to have a fairly linear curve (maximum torque at low rpm) of rpm 
> vs. torque while IC engines flatten out ( lower torque) at low 
> rpm.  However, torque alone doesn't make the vehicle go.  It is 
> power that does that so you want to operate at maximum power when 
> you really want to go, whether it is to go fast or to pull a big 
> load vertical.  In our cars we use a gear box and it sounds like 
> Jason is doing the same using some type of speed reduction to get 
> up on the power curve of the motor.
> Jim
>  ----- Original Message ----- 
>  From: Wayne Galligan 
>  To: discussion at nsrca.org 
>  Sent: Thursday, August 07, 2003 8:54 AM
>  Subject: Re: e-power
> 
> 
>  I agree with that thought but does an e-motor torque more or 
> less then a comparable glow/gas engine?
> 
>  WAG
>    ----- Original Message ----- 
>    From: Keith Hoard 
>    To: discussion at nsrca.org 
>    Sent: Thursday, August 07, 2003 9:56 AM
>    Subject: Re: e-power
> 
> 
>    If the same prop is spinning at the same RPM. . . . . what 
> does the airframe (or pilot) care??
> 
> 
>    Keith L. Hoard
>    Cordova, TN
>    khoard at midsouth.rr.com
> 
>    A man in Arkansas spent 19 years in a coma before he finally 
> regained consciousness.... The only other person from Arkansas 
> that didn't know what was happening for 19 years was, of course, 
> Hillary Clinton. 
>     - Jay Leno
> 
> 
>      ----- Original Message ----- 
>      From: Wayne Galligan 
>      To: discussion at nsrca.org 
>      Sent: Thursday, August 07, 2003 9:46 AM
>      Subject: e-power
> 
> 
>      I can only imagine that e-power= less vibration=longer 
> equipment life=longer flight pack battery life=less 
> cleanup=hmmmmmmm! starting to sound(ohh  yah less noise) like the 
> future of modeling power source. 
> 
>      One more thing... what is the difference in torque between 
> glow and e-power.  How much p-factor is involved with e-power vs. 
> glow/gas?
>      Wayne G.
> 
>        ----- Original Message ----- 
>        From: Mike McConville 
>        To: 'discussion at nsrca.org' 
>        Sent: Thursday, August 07, 2003 9:26 AM
>        Subject: RE: Poland - electric
> 
> 
>        I dont believe Jason has the prop stopping in stall turns 
> or downlines. That
>        video was a test flight, and no set-up had been dialed in yet.
>        Seems to be the downlines would be one of the big 
> advantaged of ep, as you
>        could dial the motor RPM to whatever is optimum for 
> breaking. A lot of cool
>        stuff happening!
> 
>        m
> 
>        -----Original Message-----
>        From: randy10926 at comcast.net [randy10926 at comcast.net]
>        Sent: Thursday, August 07, 2003 9:22 AM
>        To: discussion at nsrca.org
>        Subject: Re: Poland - electric
> 
> 
>        Watched the videos.  Man they are great.  Anyone know what 
> a set-up like the
> 
>        one Jason is using costs and where to get the parts.  That 
> power without
>        having 
>        to clean up after each flight and the end of the day.
> 
>        Randy
> 

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