Electrics - Cost is not as bad as it appears

[Gabriel Gonzalez]

http://www.aircraft-world.com/
https://www.fmadirect.com/site/fma.htm?body=Store
http://www.thunderpower-batteries.com/


----- Original Message ----- 
From: "Ed Schummer" <ed.schummer at sbcglobal.net>
To: <discussion at nsrca.org>
Sent: Tuesday, August 12, 2003 10:36 AM
Subject: Re: Electrics - Cost is not as bad as it appears


> Anybody know who sells these LiPo packs?
>
> Ed
>
>
> ----- Original Message ----- 
> From: "Daniel Dupont" <dansy at av.eastlink.ca>
> To: <discussion at nsrca.org>
> Sent: Tuesday, August 12, 2003 8:38 AM
> Subject: Re: Electrics - Cost is not as bad as it appears
>
>
> > Don't get me wrong, if the price come down for the battery I will give
it
> a
> > try for sure.  But I would hate to have only one plane on
> > Electric.....since I would still have to carry all that gear in case I
> need
> > the fuel plane...:)
> >
> > But my understanding at this point says...you cannot recharge at the
field
> > since the battery will already warn from the discharge cycle and I like
to
> > fly at least 6 flights, often more....
> >
> > I always a spare fully charge pack for my radio, good for about 12
flights
> > altogether.
> >
> > I carry all king of spare parts including complete a engine / spinner
> > /starter / glow driver / ect.ect......since I often fly well away from
> home
> > about 100 miles, and I fly there because since it the most concentrated
> > Pattern in the Atlantic Canada.
> >
> > Cheers Daniel D. 2693
> >
> > At 10:58 8/12/2003 -0400, you wrote:
> > >It's hard to imagine a flying scenario in which I'd need 4 LiPo battery
> > >packs at the field with me for one day's flying, with one airplane,
> > >considering that you can get 2 to 3 flights per battery, per charge.
One
> can
> > >always recharge at the field. Fly your first pack out, toss it on the
> > >charger, and fly on the second pack while #1 recharges. Unless your
> routine
> > >is to fly 8 to12 flights a day with one airplane, one right after the
> other,
> > >anything over 2 packs would be overkill IMO. And then, transmitter
> battery
> > >duration would begin to come into the picture.
> > >Obviously, at the WC, one needs to be "overprepared" for any
contingency,
> > >especially with largely new technology/equipment. In that unique case,
> > >multiple spares would be a good idea. I imagine JS likely has a spare
> motor
> > >and gearbox on hand, too. Necessary? Probably/hopefully not. But good
to
> > >have if you toast a motor or something a long way from home.
> > >Just my pair o' pennies' worth.
> > >
> > >Rick
> > >----- Original Message -----
> > >From: "Daniel Dupont" <dansy at av.eastlink.ca>
> > >To: <discussion at nsrca.org>
> > >Sent: Monday, August 11, 2003 4:36 PM
> > >Subject: Re: Electrics - Cost is not as bad as it appears
> > >
> > >
> > > > Hey Lee that is for one battery pack....let add 4 more for good
> measure
> > > > another 3000.00....if Jason has let say 7 pack with him at 750.00
that
> > > > would be another $5250.00 of Battery's, pretty bad as far I'm
concern,
> the
> > > > price of Batteries would have to come down significantly.  Also what
> the
> > > > manufacturer say about life expectancy could be different then what
> > > > actually happen to the packs, having race indoor cars for quite a
few
> > >years
> > > > one learn that battery's are also not made equal.
> > > >
> > > > Cheers Daniel D.
> > > >
> > > > At 11:09 8/11/2003 -0400, you wrote:
> > > > >I did a little quick and dirty math and while Jason's 3 batteries,
at
> a
> > > > >total cost of approximately $2000, seem prohibitively expensive,
when
> you
> > > > >compare them to glow fuel expense, they're competitive.
> > > > >
> > > > >While the electricity used to charge the batteries isn't exactly
> free,
> > >it's
> > > > >such a miniscule expense I'm calling it free.
> > > > >
> > > > >The 3 batteries are good for 500-1000 charge/discharge cycles
giving
> a
> > >total
> > > > >of 1500-3000 flights, so the cost/flight is $.66-$1.33/flight.
> Compare
> > >to
> > > > >glow fuel for a 2 stroke @ $10-$15/gal costs around
$1.50-$2+/flight.
> > > > >
> > > > >The C50 motor plus with gear reduction plus speed controller sells
> for
> > > > >around $600.  'Pretty much the same that we're paying for a 2
stroke
> plus
> > > > >exhaust system.
> > > > >
> > > > >The only thing extra is a charger.  Say, $200 for a nice one.  Not
> that
> > >bad
> > > > >though, because I've seen some that charge everything, including
> RX/TX,
> > >so
> > > > >it's more like replacing one charger with another.
> > > > >
> > > > >Lee Davis
> > > > >Piedmont Models
> > > > >http://www.piedmontmodels.com/
> > > > >
> > > > >=====================================
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