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<DIV>Yeah, that RVP is a clever guy!!! Is the 'Ohm-Off' commercially
available or reserved for Ron's 'special' friends? <IMG
src="http://cdn-cf.aol.com/se/smi/0201d20638/08"></DIV>
<DIV> </DIV>
<DIV>Don</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 3/30/2011 8:51:53 A.M. Pacific Daylight Time,
jonlowe@aol.com writes:</DIV>
<BLOCKQUOTE
style="BORDER-LEFT: blue 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 size=2 face=Arial><FONT
color=black size=3 face="Arial, Helvetica, sans-serif">It's caused by a build
up of ohms and electrons. That's why RVP carries a can of "Ohm Off" with
him to clean his airplanes!<BR><BR>
<DIV style="CLEAR: both"><FONT color=black
face="Arial, Helvetica, sans-serif"><FONT color=black face=arial><SPAN
style="FONT-SIZE: medium"
class=Apple-style-span>Jon</SPAN></FONT></FONT></DIV><BR><BR>
<DIV
style="FONT-FAMILY: arial,helvetica; COLOR: black; FONT-SIZE: 10pt">-----Original
Message-----<BR>From: AtwoodDon@aol.com<BR>To:
nsrca-discussion@lists.nsrca.org<BR>Sent: Wed, Mar 30, 2011 10:41
am<BR>Subject: Re: [NSRCA-discussion] bullets<BR><BR>
<DIV id=AOLMsgPart_3_b3f9ffab-1e3a-4d13-a41c-896fc5737e66><FONT color=#000000
size=2 face=Arial>
<DIV>I have had the same experience as Earl with regards to the Dean's Ultra
connectors. I use a Deans male as a shorting plug so it gets connected
and disconnected each flight. The spark does occur at the tip of the
negative contact and gradually erodes it but as Earl says, the tip is not the
contact surface, it is the flat side of the blade so no contact area is
lost. Over 1000 flights on one shorting plug and no problems or loss of
performance. Contact cleaner does work well at cleaning up the gummy
residue that forms. Anyone have any idea what that gummy/greasy stuff is
or where it comes from?</DIV>
<DIV> </DIV>
<DIV>Don</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 3/30/2011 7:40:49 A.M. Pacific Daylight Time, <A
title=mailto:ejhaury@comcast.net
href="mailto:ejhaury@comcast.net">ejhaury@comcast.net</A> writes:</DIV>
<BLOCKQUOTE
style="BORDER-LEFT: blue 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 size=2 face=Arial>Let's
leave the DWT alone!<BR><BR>I'll chime in with a different perspective on
connectors though. As <BR>mentioned, there can be a good deal of variance
with bullets. Providing good <BR>tension isn't easy and maintaining it over
repeated use is even more <BR>difficult. Some designs work better than
others and folks experiencing good <BR>service have done their homework.
Bullets are also easy to solder to heavy <BR>gauge leads.<BR><BR>OTOH - I've
very good service from the Deans Ultra. The attractive part of <BR>the
design (to me) is that they're simply buss bars held together with
<BR>spring tension. The surface area of the bars is way more than we need
for <BR>contact and the thickness is plenty for handling the amps. They do
get a <BR>little nasty looking on the ends - but I haven't found that to
significantly <BR>reduce contact area or function. In cutting the "female"
side apart after <BR>1000+ flights I found no degradation of anything except
the entrance end <BR>where the arc occurs, the wear pattern demonstrated
full contact. They are <BR>more difficult to solder leads to and can easily
be ruined in the process. <BR>If the plastic is melted allowing the bar to
become misaligned, full contact <BR>will not be achieved.<BR><BR>Also ,
either connecter will benefit from an occasional cleaning with a good
<BR>contact cleaner.<BR><BR>Great to have choices!<BR><BR>Earl<BR><BR>-----
Original Message ----- <BR>From: "Ronald Van Putte" <<A
title=mailto:vanputte@cox.net
href="mailto:vanputte@cox.net">vanputte@cox.net</A>><BR>To: "General
pattern discussion" <<A title=mailto:nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>><BR>Sent:
Wednesday, March 30, 2011 9:15 AM<BR>Subject: Re: [NSRCA-discussion]
bullets<BR><BR><BR>I am definitely not going to argue with Verne on this
one. He's had<BR>more experience than I do on this subject.
However, if somebody<BR>wants to debate the "downwind turn", let's get
started. <vbg><BR><BR>Ron<BR><BR>On Mar 30, 2011, at 8:42 AM,
<<A title=mailto:verne@twmi.rr.com
href="mailto:verne@twmi.rr.com">verne@twmi.rr.com</A>> wrote:<BR><BR>>
FWIW, the 5.5 mm connectors I used were of the slotted variety. I
ended <BR>> up abandoning those after discovering too much variance
from one <BR>> manufacturer to the next and sometimes within the
same manufacturer. I <BR>> had connectors that ranged all the way
from too loose to make a good <BR>> connection to so tight that you
couldn't put them together. The bulge you <BR>> mention in the 4mm
connectors is actually the "spring" that compensates <BR>> for
slight tolerance variances. I agree that there's not as much contact
<BR>> area as the slotted type, but it comes down to how much is
enough? From <BR>> my experience, the 4mm work just fine without
the hassle of trying to <BR>> find connectors to match what you've
already got on all your batteries, <BR>> charge leads, and so on.
It gets a little pricey to start all over and <BR>> I've done it
twice. With the 4mm, I just add as I go without a
hitch.<BR>><BR>> Verne<BR>><BR>><BR>><BR>> ---- Ronald Van
Putte <<A title=mailto:vanputte@cox.net
href="mailto:vanputte@cox.net">vanputte@cox.net</A>>
wrote:<BR>><BR>> =============<BR>> I have gotten these "no
bulge/slotted design" connectors from two<BR>> sources: HobbyKing
and BidProduct. You have to look at the pictures<BR>> carefully to
see that they are the "no bulge/slotted design".<BR>><BR>> I really
like BidProduct for acquiring large quantities of the<BR>> smaller items,
like connectors, extensions and hardware for my small<BR>> hobby
shop. Many items can be purchased with free shipping.<BR>><BR>>
Ron<BR>><BR>> On Mar 30, 2011, at 4:09 AM, <A
title=mailto:Houdini76@aol.com
href="mailto:Houdini76@aol.com">Houdini76@aol.com</A>
wrote:<BR>><BR>>> Ron, what brand of connectors has the no
bulge/slotted design? Do<BR>>> you use 4, 5 or
6mm?<BR>>><BR>>> Rob<BR>>><BR>>><BR>>> In a
message dated 3/29/2011 8:01:08 P.M. Eastern Daylight Time,<BR>>> <A
title=mailto:vanputte@cox.net
href="mailto:vanputte@cox.net">vanputte@cox.net</A> writes:<BR>>> Good
stuff Verne.<BR>>><BR>>> I have noticed the difference in bullet
connector design. I used<BR>>> to buy 3.5mm bullet connectors
which had a "bulge" in the center of<BR>>> the male part.
Recently, I noticed some 3.5mm bullet connectors<BR>>> which had no
"bulge" in the male part. They push into the female<BR>>> part
because there's a chamfer on the tip of the male part, which<BR>>>
compresses the slotted male connector so it will fit into the<BR>>>
female part. The big advantage of this design is that
virtually<BR>>> all of the connector is mated with the other half,
unlike the ones<BR>>> with a "bulge", which have significantly reduced
contact area.<BR>>> Then I noticed that you can buy this same design
in 4mm, 5mm and<BR>>> 6mm bullet connectors. My opinion - these
are far superior.<BR>>><BR>>> Ron<BR>>><BR>>> On Mar
29, 2011, at 6:30 PM, Verne Koester wrote:<BR>>><BR>>>>
Jerry,<BR>>>><BR>>>> I started out with Deans Ultra’s.
They worked fine but didn’t wear<BR>>>> too well. The arc from
connecting them together was really chewing<BR>>>> them up. Then I
switched to 5.5mm bullets. Those worked great and<BR>>>> the arc
did damage where it didn’t matter. The problem I<BR>>>> discovered
later was when I needed some more. Not all 5.5mm are<BR>>>> created
equal and I ran into some serious fit problems from one<BR>>>>
batch to the next. I noticed that most of the Europeans were
using<BR>>>> 4mm bullets. These are made a little different than
the 5.5mm<BR>>>> and have more “spring” in them
so the tolerances don’t have to<BR>>>> be so close. Like the 5.5mm
bullets, the arc damage happens on the<BR>>>> very tip which is not
part of the actual electrical connection.<BR>>>> I’ve been very
happy with the 4mm bullets and will be starting my<BR>>>> third
season with them. BTW, I never noticed any power changes<BR>>>>
from the Deans to the 5.5’s to the 4’s. Hope this
helps.<BR>>>><BR>>>><BR>>>><BR>>>> Verne
Koester<BR>>>><BR>>>><BR>>>><BR>>>>
From: <A title=mailto:nsrca-discussion-bounces@lists.nsrca.org
href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A>
[<A title=mailto:nsrca-?
href="mailto:nsrca-?">mailto:nsrca-</A><BR>>>> <A
title=mailto:discussion-bounces@lists.nsrca.org
href="mailto:discussion-bounces@lists.nsrca.org">discussion-bounces@lists.nsrca.org</A>]
On Behalf Of Jerry Stebbins<BR>>>> Sent: Tuesday, March 29, 2011
5:29 PM<BR>>>> To: Discussion -NSRCA<BR>>>> Subject:
[NSRCA-discussion]
bullets<BR>>>><BR>>>><BR>>>><BR>>>> All
E's. What size bullets have you settled on for your
packs/ESC<BR>>>> connections? Seems like something that would sorta
get<BR>>>> standardized after a lot of 70A usage. I have heard from
3.5 to<BR>>>> 6.0. Would think it would work itself out to support
the nominal<BR>>>> max. I that most see. I am sure 3D needs all
they can get but for<BR>>>> AMA/FAI patterns seems like it otta
round off pretty close for<BR>>>> most using 5s
packs.<BR>>>><BR>>>> Thanks
ahead<BR>>>><BR>>>> Jerry<BR>>>><BR>>>>
_______________________________________________<BR>>>>
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title=mailto:NSRCA-discussion@lists.nsrca.org
href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</A><BR>>>>
<A title=http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
target=_blank>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A><BR>>><BR>>>
=<BR>>><BR>>>
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