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ProModeler Scorpion Power
rotorsport

Senior Heliman

St. Albert, Alberta, Canada

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Just looking at getting a Synergy E5 and setting it up on a 6S1P looking at the Scorpion 4025-1100kv and considering the Rotor Tech 560s. I have a Castle 120 amp.

Dennis from the helifarm.com is helping me get set up. I see from reading on line there are a few who run this setup.

Just wondering what size of 6S1P fits in the battery area?

And what brand of battery is giving the best results?

I have been flying the Century E640 on 8 cell

Charles

IAFF 2130 It was on FIRE when I got there

10-14-2016 05:43 PM
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Dr.Ben

rrMaster

Richmond, VA, USA

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The fit is not at all critical. You'll want to run 5000's. Pulse, Optipower, TP will all give good service. You would be better off with something 35C or better since this is a 6S model.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

10-14-2016 06:07 PM
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rotorsport

Senior Heliman

St. Albert, Alberta, Canada

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Thanks yes I'm planning on running 5000

I would like to run a slower head speed so just reading about speeding up the tail rotor.

Charles

IAFF 2130 It was on FIRE when I got there

10-14-2016 07:24 PM
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Dr.Ben

rrMaster

Richmond, VA, USA

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Both my E5's are set up for low(er) speed. 54 and 11t front gears. If you need more details, fire away.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

10-18-2016 02:16 AM
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gwright

Veteran

Champaign Il

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Currently fly one on 6S, using the flightpower 5500mah packs. These batteries are lighter than many 5000's, and are 50C. I've stretched it to use 605 main blades and 105 tails, and I fly most lower than normal headspeeds (1500/1700/1900). I'm using an 850KV hacker,talon 90, and the smallest synergy pinion. current peaks are WELL ABOVE the 90 rating on the talon but it's been flying well like this for over a year without issue. It does land occassionally with the high temp beep notification, but has never reached the shuttoff point. If i wan't so stupidly obsessive about weight I would put a talon 120 in it. Would be better suited for the job,... but I'm stubborn. I also modified an E7 gear for the tail gearbox, so I'm running 5.45 to one tail ratio, and the 766 tail output shaft (3.6mm longer so provides for a little more tail pitch range). I run a lot of pitch range on the mains (16/16) due to the lower rpms, and wanted more tail than even the 4.9 ratio and 105's provided. It's a beautiful flying machine, with 7 to 9 minute flights normally being the average till capacity telemetry tells me 4500mah has been used. This is flying a mix of different rpms. It's also a ton of fun using 5s/5500 packs (same cells), flying at 1500 the entire flight. This setup goes roughly 10 minutes.

I would highly suggest a much much lower KV motor, as the 1100 is not going to be happy at lower revs. You'll probably see high current spikes and lots of heat. basic math shows 1100, 12 tooth pinion, and 6s should peak in the 2400 range, so unless you put some monster, overkill ESC in it, you'll be overheating the ESC if you try to get the revs down. I like the hacker motors for their high efficiency in lower headspeed setups. The 850 setup shows math of 1900ish peak, and is fine at 1500. The machine flies well at 1400 but the ESC gets way too hot there on 6S, hence my low rpm mode of 1500.

Gary Wright
Futaba
Flightpower
Prod manager at Hobbico

10-24-2016 09:22 PM
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rtnaviman

Senior Heliman

Ashburn, Va USA

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Question for Gary Wright, the Hack motor you are using is it the (A50-8S) 850kv. Asking because there is a (A50-8L), L = Long shaft and can. I am wanting to set up E5S for low head speed for a winter project. I will use the speedup tail gears also.

Thanks

11-29-2016 01:58 PM
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gwright

Veteran

Champaign Il

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yes, it's the A50-8S. You can get a long shaft with the 8s motor so it will engage the support bearing. not sure the support bearing is mandatory with these low power levels, but I'm using it. We realized we needed lower support bearings on the shafts when the first logo 600 came out (i flew logo's at one time). Our motors had 5mm shafts on them and they would flex under load. I actually have the first hand-made lower bearing support for the logo 600 in my workshop somewhere. Aero model was the distributor and Sean sent me one to test. Had a short piece of cuttoff motor shaft to go through the pinion cause the C50 motor shafts were too short Kind of rube goldbergish, but worked a charm. With that being said,.. guys using motors with 6mm shafts didn't have much problem without it. Guys using that motor from Germany with the 8mm shaft didn't even bother with a support bearing, but I digress.

Definately use more ESC than I'm using. It's borderline,.. works for me, but i land hearing the overtemp beeps sometimes. Never a shutdown but i think it's within a hair of that point. Going 5S and 1500,.. lands nice and cool, but on 6S i've seen telemetry record peaks of more than 140 amps, so the talon 90 is being pushed and is not something I would recommend. The last time i flew at night i recorded a new high,... peak of 156 amps, although that's fairly quick, as evidenced by the lengthy flight times. Just not a great choice, but i did have the esc already.

Gary Wright
Futaba
Flightpower
Prod manager at Hobbico

11-29-2016 09:41 PM
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Dr.Ben

rrMaster

Richmond, VA, USA

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I originally built my second E5 as an S with 625's with 6S with 830KV for lowish rpm 3D. It flew fine but I did not like going from it to the very lightly disk loaded 7S E5SS that I have. So I stretched it as well to SS config with 715's. I figured I would just try and see how it worked before duplicating the motor used int he 7S model and flying it 7S. It turned out very well. The model is uber light and I'm getting 6:30-6:45 of 1450 rpm modest 3D with esc and motor coming down in the low 100's and pack just warm. I'm sure someone could beat on it and make everything get hot, but since I don't fly that way, everything on the model is running happily. Autos are insanely good.

Ben Minor

P.S. 7S model uses a Jive80HV. 6s model uses a Jive120Pro. Both use Pyro 650's.

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

11-30-2016 12:13 AM
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rtnaviman

Senior Heliman

Ashburn, Va USA

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Thanks to Gary and Dr. Ben for your replies to my post. Gary what pinion are you using with the A50-8S motor. I have some 603 main blades and 105 for the tail. Also I have a Castle 120 ESC.

Again

Thanks

12-01-2016 08:10 PM
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gwright

Veteran

Champaign Il

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12 tooth pinion

850kv times 22.2V times 12 pinion divided by 119 main (I think it's 119), 1902rpms. current batts will average slightly higher voltage than 3.7, so it's actually a touch higher than 1900 possible. The fact that it will govern at 1900 and not load (even though I have 16 degrees pitch), is evidence of that.

Gary Wright
Futaba
Flightpower
Prod manager at Hobbico

12-01-2016 08:24 PM
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