Participation

Sun Jan 9 20:52:32 AKST 2005

Thanks Doug.  It's like I said in an earlier post, about the time 
we're expecting a price drop they come out with new stuff that 
keeps the price high.  <sigh>

Norm

----- Original Message ----- 
From: "Doug Cronkhite" <seefo at san.rr.com>
To: <discussion at nsrca.org>
Sent: Sunday, January 09, 2005 9:43 PM
Subject: RE: Participation

> They're li-poly batteries with a 21C continuous discharge rate 
> that are the
> same size and weight as the older 10C stuff. So for example on 
> my Supreme,
> instead of running  a 10s3p 6000mah at a max current of around 
> 75a burst and
> 60a continuous, I can now run a 10s2p 4000mah at about 80a 
> continuous
> without any problem, AND, I cut 33% of the battery weight in 
> doing so.
>
> I can't say who they're from yet as they're still testing to 
> verify the
> battery life as used above.
>
> I thought before that it would take 1 evolution of the batteries 
> to make
> them easily usable in F3A without resorting to drastic measures 
> and it looks
> like I was correct there. Now if only the PRICE would come down, 
> they could
> be more accessible to everyone.
>
> -Doug
>
>
>
>
>> -----Original Message-----
>> From: discussion-request at nsrca.org
>> [mailto:discussion-request at nsrca.org] On Behalf Of Norm500
>> Sent: Sunday, January 09, 2005 9:33 PM
>> To: discussion at nsrca.org
>> Subject: Re: Participation
>>
>> Boy, what a tease that is.  Maybe you're not a liberty to
>> divulge details, but about something like when the rest of us
>> will be able to see these.
>>
>> Norm
>>
>> ----- Original Message -----
>> From: "Doug Cronkhite" <seefo at san.rr.com>
>> To: <discussion at nsrca.org>
>> Sent: Sunday, January 09, 2005 9:25 PM
>> Subject: RE: Participation
>>
>>
>> > With the new batteries I saw yesterday.. weight will no 
>> > longer
>> > be an issue.
>> >
>> > -Doug
>> >
>> >
>> >
>> >
>> >
>> >  _____
>> >
>> > From: discussion-request at nsrca.org
>> > [mailto:discussion-request at nsrca.org] On
>> > Behalf Of RC Steve Sterling
>> > Sent: Sunday, January 09, 2005 9:20 PM
>> > To: discussion at nsrca.org
>> > Subject: RE: Participation
>> >
>> >
>> > Yes-- you can weigh the airplane without the electrons
>> > (uncharged), but the
>> > fuel container (battery) must be installed. Not going to help
>> > much.
>> >
>> > -----Original Message-----
>> > From: discussion-request at nsrca.org
>> > [mailto:discussion-request at nsrca.org]On
>> > Behalf Of John Pavlick
>> > Sent: Sunday, January 09, 2005 12:07 PM
>> > To: discussion at nsrca.org
>> > Subject: RE: Participation
>> >
>> >
>> > Randy + Norm,
>> > I've seen it written as:
>> > "4.3. Weight and Size. No model may weigh
>> >
>> > more than five (5) kilograms (11 pounds) gross, but
>> >
>> > excluding fuel, ready for takeoff. No model may
>> >
>> > have a wingspan or total length longer than two (2)
>> >
>> > meters (78.74 inches)."
>> >
>> > If you consider a battery as the "fuel" for an electric 
>> > plane...
>> > Just a
>> > thought.
>> >
>> > John Pavlick
>> > http://www.idseng.com <http://www.idseng.com/>
>> >
>> >
>> >
>> >
>> > -----Original Message-----
>> > From: discussion-request at nsrca.org
>> > [mailto:discussion-request at nsrca.org]On
>> > Behalf Of Randy
>> > Sent: Sunday, January 09, 2005 2:57 PM
>> > To: discussion at nsrca.org
>> > Subject: Re: Participation
>> >
>> >
>> >
>> > I think electric are weighted without the pack.  At least I 
>> > have
>> > seen it
>> > written on this list that way/
>> >
>> > Randy
>> >
>> > ----- Original Message ----- 
>> > From: MKMSG at aol.com
>> > To: discussion at nsrca.org
>> > Sent: Sunday, January 09, 2005 2:32 PM
>> > Subject: Re: Participation
>> >
>> >
>> > In a message dated 1/9/05 12:57:21 PM Central Standard Time,
>> > Norm500 at comcast.net writes:
>> >
>> > Just some thoughts from an electric flyer that hasn't started 
>> > in
>> > Pattern yet.  I have flown electric power in IMAC, but am
>> > interested in Pattern because of the 2-meter size limit.  My
>> > IMAC
>> > plane, a 2-meter Staudacher which weighs just over 13 lbs. 
>> > RTF,
>> > and is as large as I want to go.  In larger electrics the 
>> > price
>> > starts going up exponentially, but 2-meters start looking 
>> > rather
>> > small alongside of the now typical IMAC planes.
>> >
>> > BTW, my battery pack weighs just under 3 lbs. so if the rules
>> > were
>> > ever changed to allow electrics to be weighed without the 
>> > pack,
>> > I'd only be at about 10 lbs.  Not too bad for a plane that 
>> > was
>> > originally built and flown with a Quadra gas engine.
>> >
>> > Anyway, the point of all this is that you might be able to 
>> > start
>> > attracting some electric powered flyers that want to compete
>> > simply because of the 2-meter limit on size.  I know it's not
>> > something that's going to happen overnight, but changing the
>> > rule
>> > about weighing with the battery installed would surely help. 
>> > I
>> > also know that some of the top rung people are already flying
>> > electric pattern, but with state of the art planes that's 
>> > hard
>> > for
>> > entry level builders to achieve.
>> >
>> > I've been trying to decide on a pattern plane to build for 
>> > some
>> > weeks now.  I'd like it to be a 2-meter if for no other 
>> > reason
>> > than my eyesight isn't very good and the larger planes are
>> > easier
>> > to see.  Thinking of building a Typhoon 2K with Mike Hester's
>> > modifications, but the project looks daunting to someone 
>> > who's
>> > never built a wing with tubes, adjustable wing and stabs, 
>> > etc.
>> > Also have been considering the Focus II, but figure it will 
>> > be
>> > overweight with the batteries.
>> >
>> > Oh well, that's my input for today.
>> >
>> > Norm
>> >
>> >
>> > Norm: Because most pattern enthusiasts fly glow powered 
>> > models,
>> > there really
>> > hasn't been much discussion or concern regarding how
>> > glow/gas/electric
>> > pattern aircraft are weighed.  Competition rules should be as
>> > fair as
>> > possible when applied across the board to all the different
>> > types of models
>> > authorized to compete in a given category.  Rather than weigh
>> > electric
>> > pattern ships without batteries, it's my personal view that
>> > either 1) the
>> > weight limit for pattern should be eliminated, or 2) weigh 
>> > all
>> > aircraft
>> > types  -- gas, glow, or electric -- ready to fly....with fuel 
>> > or
>> > batteries
>> > as the case may be.  I'm not pro or con any particular type 
>> > of
>> > power plant.
>> > I've used glow engines for nearly 55 years and currently have
>> > two electric
>> > pattern ships on the workbench.  Our AMA competition rules 
>> > are
>> > guided and
>> > influenced by international FAI rules and it will be 
>> > interesting
>> > to see how
>> > this issue is handled as more and more modelers move to forms 
>> > of
>> > power other
>> > than glow fuel.
>> >
>> > Mike Moritko
>> >
>> >
>>
>>
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