[NSRCA-discussion] Electric pattern recommended equipment

Mon Sep 8 13:14:06 AKDT 2008

On Sep 8, 2008, at 4:00 PM, Ron Van Putte wrote:

> Chris - I submitted a description of my airplane, but I'm afraid  
> that you might have three different versions parked on the  
> website.  I kept finding changes I wanted to make after I submitted  
> a version.  Please delete all but the last one.  Thanks.
>
> Ron
>
> On Sep 8, 2008, at 1:06 PM, chris moon wrote:
>
>> Anthony.
>> Your question is exactly why I started the web site. There is no  
>> single
>> place to find the large amount of data that exists on battery and  
>> motor
>> longevity and performance. Everyone has their personal data and
>> experiences but unless you contact everyone flying electrics, you  
>> won't
>> be able to get a large enough sample of data to draw valid  
>> conclusions.
>> As far as batteries, I think you will find answers all over the  
>> board.
>> I know of some who have only had good performance from a set of
>> batteries for 20-30 cycles and others who have 200+ cycles on the  
>> same
>> type of batteries. What I am trying to do is see if the 20-30  
>> cycles is
>> the norm, or is the 200 correct, or is the average somewhere in the
>> middle. Only a large enough sample will tell, and hopefully that will
>> happen. I know that many/most/ of the really low cycle life packs  
>> were
>> caused by mfg defects and were subsequently replaced by the mfg.
>> As far as the Flight Power F3A packs, the consensus is that they are
>> really strong for maybe 50 flights, then degrade quickly and the  
>> average
>> cycle life is probably 100 or less. I consider a pack run out if it
>> can't provide adequate power for normal contest flight. Not  
>> completely
>> dead, just too weak for a contest flight. For example, my Flight  
>> Power
>> F3A pack has 110 cycles and I consider it too weak now for a contest
>> flight. On the other hand, I have 2 sets of TP 5300 ProLites with  
>> 150+
>> cycles each and fly them regularly with good performance still.
>> Remember that the user has ultimate control over how well things work
>> over time. We can all list people who could never get glow motor  
>> XYZ to
>> run well while others have stellar performance over a long period of
>> time. Same for electrics. Everyone will agree that there is a  
>> definite
>> learning curve to electrics and the best way to ensure success at  
>> first
>> is to copy a setup and charging regimen that has been used by others
>> with success over time.
>>
>> Chris
>>
>>
>> Anthony Abdullah wrote:
>> > I was looking at the site and noticed how quickly / few cycles  
>> it takes for lipo performance to start to degrade (20-30 cycles in  
>> some cases). Is the "premature" degradation on the site just a  
>> function of a small sample or does performance on average start to  
>> decrease in as few cycles?
>> >
>> > What is the average number of cycles others are seeing with F3A  
>> lipo packs before they start to lose capacity?
>> >
>> >
>> > --- On Sun, 9/7/08, JEREMY CHINN wrote:
>> >
>> >
>> >> From: JEREMY CHINN
>> >> Subject: Re: [NSRCA-discussion] Electric pattern recommended  
>> equipment
>> >> To: "General pattern discussion"
>> >> Date: Sunday, September 7, 2008, 6:55 PM
>> >> Chris Moon took the time to put up the new site
>> >>
>> >> http://www.electric-f3a.com/
>> >>
>> >> Lots of great information to be had there.> Date: Sun,
>> >> 7 Sep 2008 17:30:52 -0500> From:
>> >> glmiller3 at suddenlink.net> To: aabdu at sbcglobal.net;
>> >> nsrca-discussion at lists.nsrca.org> Subject: Re:
>> >> [NSRCA-discussion] Electric pattern recommended
>> >> equipment>> Anthony,>> I've used the Axi
>> >> 5330 F3A and the Dualsky 11T with very good results from
>> >> both. I think the AXI is a little stronger, but both are
>> >> plenty powerful. I usually run them with a 20X15 APC prop.
>> >> The CC85 and Jeti 99 spin controllers are both very good and
>> >> reliable. I prefer the Spin's myself, but I've used
>> >> both.>> For batteries, I prefer the Flightpower 5350
>> >> F3A packs....these have more capacity for their weight than
>> >> the higher discharge capacity packs - You don't need the
>> >> "C" rating, you need the "mah" rating-
>> >> my perspective anyway. The True battery 5000 ma packs are OK
>> >> for practice, but their availablity is spotty and they seem
>> >> to have differing dimensions between different
>> >> "lots".>> There is a new website the has
>> >> been started to collate various electric combo's--
>> >> I'm sure someone here will give the url shortly.>
>> >>
>> >>> G> ---- Anthony Abdullah
>> >>>
>> >> wrote:>> =============> Hello everyone,> I
>> >> have decided that my next pattern plane / build will be
>> >> electric and I am doing my preliminary research before
>> >> starting to buy equipment (motor, ESC, batteries, prop,
>> >> E-motor mount) and could really use some help.>> My
>> >> goal for my first foray into electrics is to put together
>> >> proven reliable equipment that works and performs well as
>> >> complimentary components. I don't know as much about
>> >> electrics as I will need to, but I am sure that I will be
>> >> learning a lot as I go along. My expectations are that I
>> >> will be using a Lipo 10S pack of at least 5000 mah (will
>> >> this be enough?). I have often seen that people use the
>> >> Hacker C50 motors but also see a lot of other engines by
>> >> other manufacturers.>> Requirements:> 1. I do not
>> >> want to use a gear box so I will need a motor capable of
>> >> direct drive> 2. I want equipment where the components
>> >> will all work well together> 3. weight is always an
>> >> issue> 4. price is a consideration but third behind
>> >> reliability and performance>> I will be flying
>> >> advanced with the new airplane which will be purpose built
>> >> as an electric. If there is a website or other source of
>> >> useful information on electrics, I would like that as well.
>> >>
>> >>>> Thanks in advance> Anthony>>
>> >>>>
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