[NSRCA-discussion] Electric/IC ...wasArmingPlug/ReceptacleProblem

krishlan fitzsimmons homeremodeling2003 at yahoo.com
Tue Feb 10 19:24:51 AKST 2009 

LOL.. Or snaps.. haha

Chris          

--- On Tue, 2/10/09, Ron Van Putte <vanputte at cox.net> wrote:
From: Ron Van Putte <vanputte at cox.net>
Subject: Re: [NSRCA-discussion] Electric/IC ...wasArmingPlug/ReceptacleProblem
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Date: Tuesday, February 10, 2009, 7:43 PM

Well, I am very sorry.  Please forgive me.  At least I haven't mentioned the
Downwind Turn.

Ron

On Feb 10, 2009, at 8:44 PM, krishlan fitzsimmons wrote:

> Geez Ron. Look what you started.. Don't you know by now that you
can't talk about electrics??? Some people get their feelings hurt.
> The only place it's sort of allowed is in the Electric Pattern forum
on RCU.
> 
> I don't understand why it's such an issue anymore. Glow-Electric..
Both are here to stay! Same planes, different motors.  Who cares? Not me!!!!
Just fly the dang plane! And have fun doing it!!!! All this mumbo-jumbo is
nonsense.  Fly what you like, but don't hate on someone else for flying what
they like. If you are serious about competing, the scores are what matter in the
long run. And if you are good enough, you will get them no matter what you fly.
I'm pretty confident that the top guys could fly a Piper Cub and beat most
of us. lol
> 
> Matt, this isn't intended at you, your's is just the last email
and I hit the reply button bro..
> 
> Chris
> 
> 
> 
> 
> 
> --- On Tue, 2/10/09, Matthew Frederick <mjfrederick at cox.net> wrote:
> From: Matthew Frederick <mjfrederick at cox.net>
> Subject: Re: [NSRCA-discussion] Electric/IC
...wasArmingPlug/ReceptacleProblem
> To: "General pattern discussion"
<nsrca-discussion at lists.nsrca.org>
> Date: Tuesday, February 10, 2009, 5:25 PM
> 
> Hahaha... Maybe for those who don't know how to maintain their own
engines... Me, I just choose not to loan money to the in-laws. I've been
running 140 DZ's and FZ's for 3 years now with no problems whatsoever. I
even assembled a complete 140 FZ at the field in 20 minutes using spare parts a
friend gave me... back-flipped to start on the very first try, runs like a top.
> 
> Matt
> ----- Original Message -----
> From: Keith Hoard
> To: General pattern discussion
> Sent: Tuesday, February 10, 2009 6:02 PM
> Subject: Re: [NSRCA-discussion] Electric/IC
...wasArmingPlug/ReceptacleProblem
> 
> I don't look at a YS engine as an investment . . . more like the
"loan" you make to one of your in-laws who "promises" to pay
you back . . .
> 
> On Tue, Feb 10, 2009 at 5:54 PM, Ron Van Putte <vanputte at cox.net>
wrote:
> Matt - I disagree with part of your statement #1.  I like electrics and I
love the smell of burning nitro too.
> 
> One of my fondest memories is going to contests up in Ohio, Michigan and
Indiana with Don Lowe in his old Pontiac station wagon, which had the aroma of
castor oil, that came from the fuel that had dripped on and seeped into the
carpet in the back.
> 
> I totally agree with #2.
> 
> Ron
> 
> 
> On Feb 10, 2009, at 5:20 PM, Matthew Frederick wrote:
> 
> I'm afraid I must take issue with two of your statements:
> 1) I'm not afraid of electric, I just don't like it. Part of what
I like about the hobby is the engines, I love the smell of burning nitro in the
morning, smells like victory
> 2) There's no such thing as too many YS engines to those who like them
> 
> Matt
> ----- Original Message ----- From: "John Ferrell"
<johnferrell at earthlink.net>
> To: "General pattern discussion"
<nsrca-discussion at lists.nsrca.org>
> Sent: Tuesday, February 10, 2009 10:47 AM
> Subject: Re: [NSRCA-discussion] Electric/IC ...was
ArmingPlug/ReceptacleProblem
> 
> 
> It is an interesting question for sure...
> Can you think of any other form of aviation where empty weight is more
important that Gross or take off weight?
> Of course one cannot blame the IC fans for being afraid of electric
technology.
> 
> Personally, the bad news is that the new knee joints I had installed last
year are not permitting me to squat or kneel. It is tough to deal with tending
an IC powered airplane with that limitation.
> The good news is that electrics do not appear to require the operator to
squat/kneel.
> 
> Unfortunately there remains the problem of recovering the investment of
too many YS engines and the accompanying airplanes...
> 
> John Ferrell  W8CCW
> 
> "All that is necessary for the triumph of evil is for good men to do
nothing." -- Edmund Burke
> http://DixieNC.US
> 
> 
> ----- Original Message ----- From: "Ron Van Putte"
<vanputte at cox.net>
> To: "General pattern discussion"
<nsrca-discussion at lists.nsrca.org>
> Sent: Monday, February 09, 2009 5:03 PM
> Subject: Re: [NSRCA-discussion] Electric/IC ...was Arming
Plug/ReceptacleProblem
> 
> 
> I beg to differ.  The rules are already slanted to favor IC: the way  the
airplanes are weighed.  IC airplanes are weighed without fuel;  electric
airplanes are weighed with fuel (batteries) and both may no  more than 5
kilograms.  OMG, here we go again!
> 
> Ron
> 
> On Feb 9, 2009, at 3:54 PM, James Oddino wrote:
> 
> I've been at this longer than most and have known from the  beginning
that the propulsion system is the key to winning in  Pattern competition. It can
also be the most frustrating due to  constantly changing conditions.  I found
that the gas engines with  spark ignition were a lot more consistent than glow
and that  reduced the frustration. I have more recently convinced myself  that
electric is the least frustrating.  A few folks have gone back  to glow after
playing with electric to get more power for windy  conditions.  We are now
getting close to getting more than enough  out of electric systems (3 to 4 HP?)
and when that happens we won't  have these discussions anymore. However,
before that happens, the  rules will probably be changed to favor IC.
> 
> Jim
> 
> 
> On Feb 9, 2009, at 12:39 PM, Jerry Voth wrote:
> 
> I've been lurking for a long time and after reading all the things
that one needs to do to successfully fly electric, it makes one  wonder how
things would be if electrics were the norm from the  beginning of powered R/C
models. It might go like this;
> 
> Hey guys, I just bought this little IC engine and I tried it on  one of my
Pattern models and it works really well. "Look what it  will do;
> 1. It has just as much power as our electric motors.
> 2. The only batteries you need are for the flight pack, glow  igniter and
the electric starter if you don't like to flip by hand.
> 3. All you have to do is pump fuel into the tank, spin the engine  with
the starter and fly.The tail gets a little oily, but what the  heck, it's
fairly easy to clean up.(Switching the radio on first  is a given.)
> 4. You don't have to haul a generator or an extra car battery  around
to charge motor batteries."
> 
> Please don't take this the wrong way. It is tongue in cheek and  just
an observation. I also have too much time on my hands these  days.
> 
> JJV
> ----- Original Message ----- From: "Jay Marshall"
<lightfoot at sc.rr.com>
> To: "'General pattern discussion'"
<nsrca-discussion at lists.nsrca.org>
> Sent: Monday, February 09, 2009 1:50 PM
> Subject: Re: [NSRCA-discussion] Arming Plug/Receptacle Problem
> 
> 
> A 100 ohm resistor may be enough to charge the caps and make the ESC
> "active". Bad idea...
> 
> Jay Marshall
> 
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of  Ron Van
Putte
> Sent: Monday, February 09, 2009 1:14 PM
> To: General pattern discussion
> Subject: Re: [NSRCA-discussion] Arming Plug/Receptacle Problem
> 
> Good.  I will try it.  What wattage 100 ohm resistor?  Let's see,
> doesn't sustained power equal voltage squared, divided by the
> resistance?  If so, 42 squared, divided by 100 is 17.64 watts.
> That's probably overkill, since the current surge is transitory.   How
> about a 100 ohm, 10 watt resistor?
> 
> Just thought of something:  With the 100 ohm resistor across the
> arming plug receptacle, won't the ESC be on whenever the batteries
> are plugged into the circuit?
> 
> BTW, what about Castle Creation's statement that the "spark is
your
> friend'?
> 
> Ron
> 
> On Feb 9, 2009, at 11:55 AM, James Oddino wrote:
> 
> Put a 100 ohm resistor across the arming plug receptacle.  Then the
> capacitors in the ESC will charge without a spark as you connect
> the batteries.  When you connect the arming plug, no spark.
> 
> Jim
> 
> 
> On Feb 9, 2009, at 8:08 AM, Ron Van Putte wrote:
> 
> I have a problem which I am sure many other E-powered airplane
> owners have that I'd like to solve.  I use an arming plug to
> connect the two 5S Lipo packs to the ESC.  On initial contact of
> the arming plug with the receptacle, there's a big spark thrown.
> Eventually the contacts on the arming plug and receptacle get
> burned to the point where the electrical contact is very bad.
> Yesterday I had to land my airplane deadstick because (I think)
> the ESC saw what it thought was low voltage out of the battery
> that was actually due to the burned arming plug/receptacle
> contacts.  BTW, I am using high-amp Anderson Power Pole
> connectors, which are probably more susceptible to having the
> contacts burned than would Deans Ultra connectors.
> 
> I have thought about putting a BIG capacitor in parallel with the
> arming plug, that would damp the initial current surge which
> causes the spark.  The capacitor could be removed before flight.
> However, I'm wondering if there's a more elegant solution.
> 
> Ron Van Putte
> 
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> 
> --
> Keith Hoard
> Collierville, TN
> khoard at gmail.com
> 
> 
> 
> 
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