Electric F3A

[Ed Miller]

Some of us prefer and will not give up the smell of Nitro in the 
morning...............
Ed M.
----- Original Message ----- 
From: "Del K. Rykert" <drykert2 at rochester.rr.com>
To: "John Ferrell" <johnferrell at earthlink.net>; "NSRCA Discussion" 
<discussion at nsrca.org>
Sent: Thursday, September 22, 2005 9:26 AM
Subject: Re: Electric F3A


> For some of us this is why we will never be able to afford to switch even 
> if we felt the desire..
>
>                 Del
>          nsrca - 473
>
> ----- Original Message ----- 
> From: "John Ferrell" <johnferrell at earthlink.net>
> To: "NSRCA Discussion" <discussion at nsrca.org>
> Sent: Thursday, September 22, 2005 8:07 AM
> Subject: Re: Electric F3A
>
>
>> Battery prices and their unpredictable life seem to be the major problem.
>>
>> Still, it does not seem to me that one can compute the power needs for an 
>> electric from the experience gained with an IC power plant.
>>
>> John Ferrell
>> http://DixieNC.US
>>
>> ----- Original Message ----- 
>> From: "John Pavlick" <jpavlick at idseng.com>
>> To: "NSRCA Discussion" <discussion at nsrca.org>
>> Sent: Thursday, September 22, 2005 12:21 AM
>> Subject: RE: Electric F3A
>>
>>
>>> John,
>>> Don't try to compare Apples and Oranges. I've seen Dan's plane fly and 
>>> yes
>>> it seems to work very well.  Remember though, an electric motor and an
>>> internal combustion engine have very different torque output / power 
>>> curves.
>>> While an I.C. engine generally needs to spin faster to generate torque, 
>>> an
>>> electric motor can generate a lot of torque at very low RPM. Also, I 
>>> don't
>>> think an electric motor really "unloads" as the plane flies. I've only
>>> played with the little stuff, so I'm not an expert by any means. It will 
>>> be
>>> very interesting to see what develops in the near future. If only 
>>> batteries
>>> were a little more reasonably priced...
>>>
>>> John Pavlick
>>> http://www.idseng.com
>>>
>>>
>>>  -----Original Message-----
>>>  From: discussion-request at nsrca.org 
>>> [mailto:discussion-request at nsrca.org]On
>>> Behalf Of John Ferrell
>>>  Sent: Wednesday, September 21, 2005 11:32 PM
>>>  To: discussion at nsrca.org
>>>  Subject: Re: Electric F3A
>>>
>>>
>>>  You are getting through to me...
>>>  Dan Landis was using a Glow prop on his Brio at the Nats. That helps me 
>>> to
>>> better understand the power requirements.
>>>
>>>  Other than buy & try, is there a way to determine what kind of battery
>>> requirements might be required to drive an APC 15-12 at about 8200 rpm? 
>>> I
>>> had in mind the same AXI 5330/18 motor that Landis used.
>>>
>>>  Another way to ask my question is "what does it take to replace a 
>>> YS140?
>>>
>>>  John Ferrell
>>>  http://DixieNC.US
>>>
>>>
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>>
>>
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>
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