[NSRCA-discussion] bullets

Wed Mar 30 06:20:29 AKDT 2011

Ron,

Does the aircraft know the wind is blowing, and which direction???  lol

On 3/30/2011 10:15 AM, Ronald Van Putte wrote:
> I am definitely not going to argue with Verne on this one.  He's had 
> more experience than I do on this subject.  However,* if somebody 
> wants to debate the "downwind turn"*, let's get started. <vbg>
>
> Ron
>
> On Mar 30, 2011, at 8:42 AM, <verne at twmi.rr.com> wrote:
>
>> FWIW, the 5.5 mm connectors I used were of the slotted variety. I 
>> ended up abandoning those after discovering too much variance from 
>> one manufacturer to the next and sometimes within the same 
>> manufacturer. I had connectors that ranged all the way from too loose 
>> to make a good connection to so tight that you couldn't put them 
>> together. The bulge you mention in the 4mm connectors is actually the 
>> "spring" that compensates for slight tolerance variances. I agree 
>> that there's not as much contact area as the slotted type, but it 
>> comes down to how much is enough? From my experience, the 4mm work 
>> just fine without the hassle of trying to find connectors to match 
>> what you've already got on all your batteries, charge leads, and so 
>> on. It gets a little pricey to start all over and I've done it twice. 
>> With the 4mm, I just add as I go without a hitch.
>>
>> Verne
>>
>>
>>
>> ---- Ronald Van Putte <vanputte at cox.net> wrote:
>>
>> =============
>> I have gotten these "no bulge/slotted design" connectors from two
>> sources:  HobbyKing and BidProduct.  You have to look at the pictures
>> carefully to see that they are the "no bulge/slotted design".
>>
>> I really like BidProduct for acquiring large quantities of the
>> smaller items, like connectors, extensions and hardware for my small
>> hobby shop.  Many items can be purchased with free shipping.
>>
>> Ron
>>
>> On Mar 30, 2011, at 4:09 AM, Houdini76 at aol.com wrote:
>>
>>> Ron, what brand of connectors has the no bulge/slotted design?  Do
>>> you use 4, 5 or 6mm?
>>>
>>> Rob
>>>
>>>
>>> In a message dated 3/29/2011 8:01:08 P.M. Eastern Daylight Time,
>>> vanputte at cox.net writes:
>>> Good stuff Verne.
>>>
>>> I have noticed the difference in bullet connector design.  I used
>>> to buy 3.5mm bullet connectors which had a "bulge" in the center of
>>> the male part.  Recently, I noticed some 3.5mm bullet connectors
>>> which had no "bulge" in the male part.  They push into the female
>>> part because there's a chamfer on the tip of the male part, which
>>> compresses the slotted male connector so it will fit into the
>>> female part.  The big advantage of this design is that virtually
>>> all of the connector is mated with the other half, unlike the ones
>>> with a "bulge", which have significantly reduced contact area.
>>> Then I noticed that you can buy this same design in 4mm, 5mm and
>>> 6mm bullet connectors.  My opinion - these are far superior.
>>>
>>> Ron
>>>
>>> On Mar 29, 2011, at 6:30 PM, Verne Koester wrote:
>>>
>>>> Jerry,
>>>>
>>>> I started out with Deans Ultra’s. They worked fine but didn’t wear
>>>> too well. The arc from connecting them together was really chewing
>>>> them up. Then I switched to 5.5mm bullets. Those worked great and
>>>> the arc did damage where it didn’t matter. The problem I
>>>> discovered later was when I needed some more. Not all 5.5mm are
>>>> created equal and I ran into some serious fit problems from one
>>>> batch to the next. I noticed that most of the Europeans were using
>>>> 4mm bullets. These are made a little different than the 5.5mm
>>>> and     have more “spring” in them so the tolerances don’t have to
>>>> be so close. Like the 5.5mm bullets, the arc damage happens on the
>>>> very tip which is not part of the actual electrical connection.
>>>> I’ve been very happy with the 4mm bullets and will be starting my
>>>> third season with them. BTW, I never noticed any power changes
>>>> from the Deans to the 5.5’s to the 4’s. Hope this helps.
>>>>
>>>>
>>>>
>>>> Verne Koester
>>>>
>>>>
>>>>
>>>> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-
>>>> discussion-bounces at lists.nsrca.org] On Behalf Of Jerry Stebbins
>>>> Sent: Tuesday, March 29, 2011 5:29 PM
>>>> To: Discussion -NSRCA
>>>> Subject: [NSRCA-discussion] bullets
>>>>
>>>>
>>>>
>>>> All E's. What size bullets have you settled on for your packs/ESC
>>>> connections? Seems like something that would sorta get
>>>> standardized after a lot of 70A usage. I have heard from 3.5 to
>>>> 6.0. Would think it would work itself out to support the nominal
>>>> max. I that most see. I am sure 3D needs all they can get but for
>>>> AMA/FAI patterns seems like it otta round off pretty close for
>>>> most using 5s packs.
>>>>
>>>> Thanks ahead
>>>>
>>>> Jerry
>>>>
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>>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>>
>>> =
>>>
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-- 

Phil Spelt, KCRC President
AMA 1294 Scientific Leader Member
SPA 177 Board Member
(865) 435-1476v, (865) 604-0541c

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