Winter / Focus / Fuel

[Tony Stillman]

Doug:

You are exactly correct!  I hate the DB system we use now..

Tony Stillman
Radio South
3702 N. Pace Blvd.
Pensacola, FL 32505
1-800-962-7802
www.radiosouthrc.com
----- Original Message ----- 
From: "Doug Cronkhite" <seefo at san.rr.com>
To: <discussion at nsrca.org>
Sent: Wednesday, December 03, 2003 3:09 PM
Subject: Re: Winter / Focus / Fuel


> Yep.. I'm aware of the ground noise. If anything this is a clear
> example that our testing methods need work.
>
> -Doug
>
> On Wed, 3 Dec 2003, Tony Stillman wrote:
>
> > Doug:
> >
> > Don't expect super quiet operation.  Jason's model checked 88-92 db
> > throughout the event at Poland. That's quiet, but not silent.  The prop
> > makes a good bit of the noise, as well as the gear train.  In the air,
it is
> > very quiet!
> >
> > Tony Stillman
> > Radio South
> > 3702 N. Pace Blvd.
> > Pensacola, FL 32505
> > 1-800-962-7802
> > www.radiosouthrc.com
> > ----- Original Message ----- 
> > From: "Doug Cronkhite" <seefo at san.rr.com>
> > To: <discussion at nsrca.org>
> > Sent: Wednesday, December 03, 2003 1:42 PM
> > Subject: Re: Winter / Focus / Fuel
> >
> >
> > > Sure thing..
> > >
> > > Motor: Hacker C50-14XL geared.
> > > Controller: Jeti Hacker Master 77-3p.
> > > Batteries: Thunder Power 10s3p (actually 2 x 5s3p wired in series)
> > > Charger: Schulze ISL 6-330d x 2
> > > Aircraft: ZN Line Supreme
> > >
> > > Cost is unreasonable at this stage of the game. The motor and
controller
> > > are actually not the bulk of the price. It's the batteries. Including
> > > everything (motor, controller, battery, chargers) I have roughly $2000
> > > invested. You could knock about $650 off that if you only buy 1
> > > 10s3p battery pack. I already had the chargers so you're looking at
> > > another $380 to buy a pair. I'm also developing my own mounting setup
for
> > > the airplane (which ZN will manufacture as an option). Landing gear is
> > > also being designed to handle the 22x12 APC-E prop. 1st rev will be
> > > aluminum but a carbon gear is in the works as well.
> > >
> > > As far as weight goes, I'll have to get out the scale for exact
numbers,
> > > but the installed weight is about 8 ounces more than a comparable glow
> > > installation (this is using Jason's airplane as a reference as I'm
still
> > > building mine). Judging by the component weights of my kit and
hardware, I
> > > think I'll be at 9.5 pounds before paint/covering so 10.5 pounds
should
> > > be VERY workable, but keep in mind I'm looking at every gram that goes
> > > into the airplane to keep it as light as possible.
> > >
> > > OK.. so the disadvantages at this moment are costs, lack of completely
off
> > > the shelf components, and the volatility of the LiPo batteries if
they're
> > > mistreated (fire and explosion). There is also the unknown of just how
> > > many charge/discharge cycles these batteries can take at these current
> > > levels (roughly 65 amps max). These are all things I'm willing to
> > > risk/endure however.
> > >
> > > The advantages to me however MORE than overcome the problems.
> > >
> > > 1) lack of vibration
> > > 2) perfect throttle response
> > > 3) zero weight change/shift through the flight
> > > 4) low noise
> > > 5) no lean/rich runs
> > > 6) no flameouts
> > >
> > > Last and most importantly is the available practice sites for me. We
have
> > > an electric only field here in San Diego which is 10 minutes away and
> > > rarely used if ever in the afternoons giving me all the flying time I
will
> > > need.
> > >
> > > -Doug
> > >
> > >
> > >
> > > On Wed, 3 Dec 2003, JOddino wrote:
> > >
> > > > Hey Doug,
> > > > Could you describe your complete set-up, plane, motor, batteries,
etc.,
> > with
> > > > weight and cost.  This sure sounds like the way to go if the costs
are
> > not
> > > > too unreasonable.
> > > > I agree 300 flights a year seems to be plenty even when you can fly
all
> > year
> > > > long.  I remember how I couldn't wait to retire so I could fly
everyday.
> > > > Now I can but I don't go out more than 2 or 3 times a week and some
> > weeks
> > > > not at all.
> > > > Jim
> > > > ----- Original Message ----- 
> > > > From: "Doug Cronkhite" <seefo at san.rr.com>
> > > > To: <discussion at nsrca.org>
> > > > Sent: Wednesday, December 03, 2003 8:52 AM
> > > > Subject: Re: Winter / Focus / Fuel
> > > >
> > > >
> > > > >
> > > > > Hopefully none. I have 2 10s3p li-po's on the way (big hit to the
> > wallet
> > > > > there)..
> > > > >
> > > > > My chargers are Schulze.. they'll likely outlast me.
> > > > >
> > > > > -Doug
> > > > >
> > > > > On Wed, 3 Dec 2003, Wayne Galligan wrote:
> > > > >
> > > > > > How many li-po battery packs or charghers will you be going
through?
> > > > > >
> > > > > > WG
> > > > > >
> > > > > > ----- Original Message ----- 
> > > > > > From: "Doug Cronkhite" <seefo at san.rr.com>
> > > > > > To: <discussion at nsrca.org>
> > > > > > Sent: Wednesday, December 03, 2003 10:20 AM
> > > > > > Subject: RE: Winter / Focus / Fuel
> > > > > >
> > > > > >
> > > > > > > On Wed, 3 Dec 2003, Atwood, Mark wrote:
> > > > > > >
> > > > > > > > That begs an  interesting question.
> > > > > > > >
> > > > > > > > How much fuel do people burn in a calendar year?
> > > > > > > >
> > > > > > > > I'd be interested to hear responses and where you're from
(or
> > maybe
> > > > more
> > > > > > specifically, how many months that fuel is spread over.
> > > > > > > >
> > > > > > > > In a competitive year (the last three not withstanding) I
was
> > > > burning
> > > > > > 40-50 gal over 3.5 - 4 months (late May - Mid Sept.)
> > > > > > > >
> > > > > > > > -Mark
> > > > > > >
> > > > > > > Hmmm..
> > > > > > >
> > > > > > > I'm in San Diego.. will be flying all year round.. I don't
think
> > I'll
> > > > burn
> > > > > > > a single gallon of fuel this year :-P
> > > > > > >
> > > > > > > -Doug
> > > > > > >
> > > > > > > =====================================
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