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HomeAircraftHelicopterMain Discussion › What connectors do you use for your 12S helicopter?
10-29-2011 04:29 PM  6 years agoPost 81
red_z06

rrProfessor

Dumont, NJ

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We are running 2150 (no gov). Yes, we were being very very gentle, trying to get the 7min out of 12s5000 with 20% reserve.

We were tryin for 7min when my wife yelled "7min has passed!" when it didn't.

Watch at YouTube

Based on the YT time, it was only 6:30sec flight.

www.JustinJee.com

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10-29-2011 04:58 PM  6 years agoPost 82
Band1086

rrElite Veteran

Kennewick, Wa. USA

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2150 is higher than I thought(watched the vid before), and no gov, are you running tx thro curves only? The NEU's are highest eff motors out, but I wonder if the gov draws off more power than curves?

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10-29-2011 05:06 PM  6 years agoPost 83
red_z06

rrProfessor

Dumont, NJ

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but I wonder if the gov draws off more power than curves?
We use narrow chord blades that are better at higher rpm with less drag loss. But, they are not for high impact presentation (crazy scary blade fart ).

Gov will try hard to pump unnecessary current to smooth out tiny deviations in the rpm. Motors, unlike the engines, do have a built in mechanism that will prevent over speeding. However, they can't compensate for the voltage drop in the input. So, the rpm toward the end is lower somewhat (did not measure).

If the rpm consistency is important, you can add few% higher setup for idle-up2 and flip to it after 60-70% of the flight at IU1.

You should see at least 10-20% gain in flight time by removing the gov.

Throttle curve only (all our electrics).

www.JustinJee.com

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10-29-2011 06:23 PM  6 years agoPost 84
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Benny, a good gov will increase your flight times. When the VBAR gov feeds forward, it anticipates loads before they get out of hand and the gov has to catch up. You end up with a more efficient power system that will do the same job with less HS. That equals longer flight times........Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-30-2011 06:37 AM  6 years agoPost 85
AWittleWabbit

rrElite Veteran

O.C., CA

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I use micro JSTs.......lol

Watch at YouTube

Heli-itis sufferer.

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10-30-2011 11:43 AM  6 years agoPost 86
LaurenceGough

rrElite Veteran

UK

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I use 4mm bullets.

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10-30-2011 03:58 PM  6 years agoPost 87
RCMUstang

rrNovice

Rockville, MD - USA

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I've been using APP 45s on my 700E for about 8 months now and they work great. Everything else I fly uses Deans so I know both. The APP connectors spark less and are easier to work with. I have not had any connection issues. I don't fly any smack or hard 3D yet, but I do occasionally pull on the collective hard. Choose what works for you.

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10-30-2011 05:45 PM  6 years agoPost 88
lazor 22

rrApprentice

Wendell, NC

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If you use deans, make sure you put a spark suppressor in there especially in HV applications. On 6s, after about 200 or so plug ins, my Deans plug is looking very weak, and even pulled out in flight last week.

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10-31-2011 02:02 PM  6 years agoPost 89
Wahoo

rrNovice

Stuart FL

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The APP work great for me. You do need the $30 crimper to make it easy and perfect, but it's worth it. Only draw back is if you are working with 8 gauge wire. The 45A crimp can't handle the size and the insulated wire is a almost impossible fit in the plastic connector. I think 8ga wire is overkill for our uses anyway so I trim off a few strands off the wire so it will crimp propery. The only 8ga 8've had to deal with is on the CC 120.

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10-31-2011 02:05 PM  6 years agoPost 90
red_z06

rrProfessor

Dumont, NJ

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CC160 is also 8 gauge to handle the spec of 160a continuous.

Has anyone tried to fit 10gauge and 8gauge for soldering to EC5?

I've looked at XT60s hard. But, these have the same diameter connector body. So, if the contact is made at the tip, arc damage can affect the performance while EC5 will keep the contact surfaces clean.

www.JustinJee.com

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10-31-2011 02:16 PM  6 years agoPost 91
bkervaski

rrElite Veteran

Birmingham, AL, USA

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Has anyone tried to fit 10gauge and 8gauge for soldering to EC5?
Yea, you gotta trim the strands down a bit, even with the Anderson Power Poles, or you'll have a mess and a crappy solder point or crimp.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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10-31-2011 02:22 PM  6 years agoPost 92
red_z06

rrProfessor

Dumont, NJ

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For 10gauge wire soldering on the 4mm motor end, I drilled open the back end of the connector to accept the bigger gauge wires.

I did order some XT60 and EC5 for future use. I'll see if there is enough meat left on the connectors to open up the diameter on the EC5.

www.JustinJee.com

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10-31-2011 09:23 PM  6 years agoPost 93
xStatiCa

rrApprentice

New Port Richey, FL

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PRC6 connectors and love them. Easier to disconnect than EC5, more current capability, and shorter. They have polarity protection but they do not have protection from plugging a battery into another battery so be careful when you have a bunch of batteries next to your heli.

I cut them down the center to separate them to use them for ESC connectors too. They are a little big for the ESC connectors but they are easier to disconnect when changing motors than the normal 4mm bullets. I also cut them apart to use for the series connection between two 6s batteries to make 12s.

It looks like hobby king has caught wind of them now and just started carrying HXT 6mm connectors which look essentially the same.

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10-31-2011 09:42 PM  6 years agoPost 94
esmoglo

rrKey Veteran

Florida USA

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I use dean’s connectors should I be ashamed?

Ugly can be fixed stupid is forever!

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10-31-2011 09:51 PM  6 years agoPost 95
red_z06

rrProfessor

Dumont, NJ

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I use dean’s connectors should I be ashamed?
No! We are 100% Deans from 3s to 12s.

www.JustinJee.com

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10-31-2011 09:58 PM  6 years agoPost 96
red_z06

rrProfessor

Dumont, NJ

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Not all EC5s are same.

If you have one piece male pins like this, it would be very very difficult to remove.

But, if yo have two piece male with thin sring contact like below, it can be much easier (with proper tolerance).

This maybe why some say they are hard to remove while others say not so. Also, the ones on top makes contact at the tip rather than mid body. That means spark damaged tips can affect performance for the top kind vs bottom.

www.JustinJee.com

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10-31-2011 10:02 PM  6 years agoPost 97
7wt

rrNovice

MIddletown, CT

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On my T500 I just finished building, I went with the PP and their crimper. I have no trouble soldering but after having a Deans connector fail in a car I decided the mechanical crimp was far superior to a solder joint that can fatigue with heavy use and vibrations. After spending a whopping 10 minutes to rig up two battery packs, two charging leads, and a speed controlled I am sold on the Power Poles for convenience alone. Factor in how easily they are to operate and the fact that they can be configured to multiple set-ups and can be mechanically tied together with their little safety pin things and you have a no brainer. I will be using the Power Poles on everything from here on out, including a 12S bird when the time and finances allow .

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10-31-2011 10:23 PM  6 years agoPost 98
red_z06

rrProfessor

Dumont, NJ

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Here is a collection of all the connectors discussed. I do not know if all the numbers are correct, however.

https://sites.google.com/site/tjing...s/rc-connectors

Just use it as a general guide.

www.JustinJee.com

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10-31-2011 11:18 PM  6 years agoPost 99
whoamis

rrVeteran

san francisco, ca

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Is the logic really this simple?

On 6S 5000 in 550E I get 4:30 flying.

On 10S 4200 in Logo 600, I get 5:00 flying easily.

I think this means that I'm pulling less current on the Logo than the 550E, therefore if I'm ok w/ PP on my 550 I should be fine converting the Logo (bought used) to PP.

oops, bounced it!

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10-31-2011 11:26 PM  6 years agoPost 100
red_z06

rrProfessor

Dumont, NJ

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You are pulling 53amp avg on your 550e and only 40amp avg on your 600. So, yes the setup on your 550e (whatever that maybe) is more than enough on your 600.

Power level is another story.

I am using nothing more than a PC card contact design for a 2000v defibrillator discharge. Only thing that I have to worry about at this voltage is to maintain creep distance of 3mm/1000v. That means for every potential difference of 1000v, I must have a flow path (not air gap) gap of 3mm over non conducting surface like PCBs. So I make sure there is 6mm path between two contacts and everything is cool.

http://www.docstoc.com/docs/7779120...543#viewer-area

BTW, getting the patent was easy part. Passing all the FDA testing was not (but it did).

www.JustinJee.com

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HomeAircraftHelicopterMain Discussion › What connectors do you use for your 12S helicopter?
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