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Beginners New to e-power flying? Get the low down in here from experienced e-power RC pilots!

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Old 01-06-2013, 12:18 AM   #1
Bugle'em
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Default Need Advice,Powering a 1/4 aeronca

First off let me say what a great forum you have here.

I have a 1/4 aeronca that was given to me about 12 years ago(just now getting around to building it). I have decided I want to go E-power but I am a bit confused on what to power it with. I'm looking at the following items but would like some advice before puling the plug on purchasing.


Turnigy RotoMax 1.20 Brushless Outrunner Motor

Turnigy dlux 120A HV Brushless Speed Controller (OPTO).

Also need advice as what to what battery would be best suited for that application.(if this system is suitable for my needs). Any and all advice would be Greatly appreciated.

Thanks Bugle'em.
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Old 01-06-2013, 12:47 AM   #2
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Originally Posted by Bugle'em View Post
First off let me say what a great forum you have here.

I have a 1/4 aeronca that was given to me about 12 years ago(just now getting around to building it). I have decided I want to go E-power but I am a bit confused on what to power it with. I'm looking at the following items but would like some advice before puling the plug on purchasing.


Turnigy RotoMax 1.20 Brushless Outrunner Motor

Turnigy dlux 120A HV Brushless Speed Controller (OPTO).

Also need advice as what to what battery would be best suited for that application.(if this system is suitable for my needs). Any and all advice would be Greatly appreciated.

Thanks Bugle'em.
I don't know anything about your plane. Need the approx weight and wing span of the finished aircraft.

Also what you estimate the ground clearence to be at the motor shaft.

Do they provide a recommendation for a glow or gas engine and prop?

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Old 01-06-2013, 01:09 AM   #3
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Hi, If your power system is in this ball park, you should be ok.

Here's Everything you'll need:
Radio
1 - SPM7800 DX7s 7 Ch w/ AR8000 NO SX's MD2
2 - HT0605 24" Aileron Extension w/Gold Pins
1 - Voltage Regulator with Failsafe Switch, 6V

Motor/Prop
1 - PM532034 AXI Gold 5320/34 Outrunner Motor
1 - PE2012W 20x12 Thin Electric Prop

Motor Controller
1 - ERCE085P eRC 85A Brushless Programmable Opto ESC
1 - ERCE02 eRC Electronic Programmer

Battery
2 - VNR15019 5000mAh 4S 14.8v 25C LiPo
1 - WSD7002 Series Module w/Deans Ultra Connectors

Charger
1 - SRC6200 B6 Ultimate 200W Balance Charger for 1-6 Lipo Cells

Accessories
Includes: Glue, Solder, Connectors, etc.

additional info

Hangar 9 quarter scale Champ
1 of 1 people found this posting helpful
Review by Gibouleau, Ray (Maine USA) on Aug 01, 2011
Great looking and flying model. Power by a Rimfire 1.20 with 2 5000 mah lipos. Rimfire .60 would be better, as the 1.20 is too much motor for scale flying unless its on floats. But the finished airplane is beautiful and gets lots of positive comments. Very happy with it. The bottom hatch on the nose came off on landing; perhaps the holding spring needs to be beefed up somewhat.

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
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Old 01-06-2013, 01:18 AM   #4
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Contact Jeff at Heads up Rc, he can fit you with a perfect power system, heads up rc is used by a lot of people here, and Jeff has some of the greatest prices and service around

http://www.headsuprc.com/servlet/StoreFront


This would be my suggestion on a power system from heads up rc. as not to over power it.

http://www.headsuprc.com/servlet/the...h-03%29/Detail















Firepower 110 Sport (6354-03) Outrunner Brushless Motor

SKU: H-140
Price: $69.95
This item is in stock
Quantity:





















The Firepower 110 Sport (6354-270) is a 16.9 ounce, 270KV, 2100 watt outrunner brushless motor that is roughly equivalent in power to 1.10 two stroke glow engines. It works well with 6 to 10 cell Lipo batteries.

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
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Old 01-06-2013, 02:32 AM   #5
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109" wing shooting for under 20lbs for sure. Suggested motor size is 110-160 nitro I'm pretty sure it could clear a 22" prop.

Oops thought I was on dads SN since I'm on his computer lol anyway Bugle is my dad.
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Old 01-06-2013, 03:51 AM   #6
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OK, let's assume 20 pounds. So you want about a 2000 watt motor that will swing a 20 to 22" prop.

So let's see how your motor choice stacks up:

Turnigy RotoMax 1.20
Spec.
Battery: 8 Cell /29.6V
RPM: 280kv
Max current: 65A
Watts: 1924w
No load current: 29.6V/1.55A
Internal resistance: 0.027 ohm
Weight: 622g
Diameter of shaft: 8mm
Suggested ESC: 80A 8S Compatible
Suggested Prop: 19x10" or 20x10" APC

Lines up well with the target I suggested.


Max current on this motor on 8 cell lipo pack is 65 amps

You listed a 120 A ESC. Certainly that will work but it is a bit over kill. They recommend an 80 amp ESC so you can downsize a bit if you wish, but your choice will work.

You should have plenty of room in that fuse, so I might suggest this 5000 mah pack. You could run them as a parallel pair to get longer flight times.
http://www.hobbyking.com/hobbyking/s...Lipo_Pack.html


I am VERY partial to Cell Pro chargers
http://www.revolectrix.com/cat.chargers.htm

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Old 01-06-2013, 04:24 AM   #7
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We have a good charger already. And we were planning on running 2 4s 5000mah packs. so we can get more use out of the 4s battery's. We picked the 120a esc as the others didn't seem to support 8s.
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Old 01-06-2013, 04:39 AM   #8
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Originally Posted by BBCorvette18 View Post
109" wing shooting for under 20lbs for sure. Suggested motor size is 110-160 nitro I'm pretty sure it could clear a 22" prop.

Oops thought I was on dads SN since I'm on his computer lol anyway Bugle is my dad.
Hi BBCorvette18 and Welcome to Wattflyers, Pops Bugle is Very Welcome here too LOL, Take care and have fun, Chellie

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
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Old 01-06-2013, 06:49 AM   #9
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Thanks for the reply s Chellie and Aeajr.

I'm use to tinkering with the nitro planes, so when I started reading up on the electrics it was kind of overwhelming trying to figure out all the numbers. Starting to get a grasp of it now ( I think ) LOL. Any how thanks again, now its time to order up some goodies.
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Old 01-06-2013, 06:56 AM   #10
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Originally Posted by Bugle'em View Post
First off let me say what a great forum you have here.

I have a 1/4 aeronca that was given to me about 12 years ago(just now getting around to building it). I have decided I want to go E-power but I am a bit confused on what to power it with. I'm looking at the following items but would like some advice before puling the plug on purchasing.


Turnigy RotoMax 1.20 Brushless Outrunner Motor

Turnigy dlux 120A HV Brushless Speed Controller (OPTO).

Also need advice as what to what battery would be best suited for that application.(if this system is suitable for my needs). Any and all advice would be Greatly appreciated.

Thanks Bugle'em.
Check out the Hacker A60-5S motor. I've got both the A60-5S and A60-16M motors in two giant scale models. Both motors are real powerhouses, and both are very well made. Their prop shafts are threaded like a glow engine, rather than bolting on a prop adapter on the shaft. I'm running mine on a 10S2P A123 and a 12S2P A123 packs respectively pulling about 60 Amps at full power. Under this load, these motors only get slightly warm, running a 19X12 prop at 7000 RPM for the -16M motor.

The A60-16M motor has over 190 flights on it now.

And, its slightly less expensive than the Axi motor.
https://www.aero-model.com/8_72_1127...0-5S%20V2.html


And more reading material for Giant Scale Power Systems

Battery Backup System
http://www.wattflyer.com/forums/showthread.php?t=63794

Carl Goldburg Extra 330 Electric Conversion
http://www.wattflyer.com/forums/showthread.php?t=59273

Great Planes Giant Big Stick Electric Conversion
http://www.wattflyer.com/forums/showthread.php?t=65052

Giant Scale Cessna Model
http://www.wattflyer.com/forums/showthread.php?t=66414

DennyV
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Old 01-06-2013, 08:45 AM   #11
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Originally Posted by kyleservicetech View Post
Check out the Hacker A60-5S motor. I've got both the A60-5S and A60-16M motors in two giant scale models. Both motors are real powerhouses, and both are very well made. Their prop shafts are threaded like a glow engine, rather than bolting on a prop adapter on the shaft. I'm running mine on a 10S2P A123 and a 12S2P A123 packs respectively pulling about 60 Amps at full power. Under this load, these motors only get slightly warm, running a 19X12 prop at 7000 RPM for the -16M motor.

The A60-16M motor has over 190 flights on it now.

And, its slightly less expensive than the Axi motor.
https://www.aero-model.com/8_72_1127...0-5S%20V2.html


And more reading material for Giant Scale Power Systems

Battery Backup System
http://www.wattflyer.com/forums/showthread.php?t=63794

Carl Goldburg Extra 330 Electric Conversion
http://www.wattflyer.com/forums/showthread.php?t=59273

Great Planes Giant Big Stick Electric Conversion
http://www.wattflyer.com/forums/showthread.php?t=65052

Giant Scale Cessna Model
http://www.wattflyer.com/forums/showthread.php?t=66414
Thanks for your input, and the links, some good looking planes you got there.
Now i'm off to read up on the Battery back up. Then again I might just wait tell the morning as I think I've stressed my brain enough for tonight.
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Old 01-06-2013, 12:10 PM   #12
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Originally Posted by Bugle'em View Post
Thanks for the reply s Chellie and Aeajr.

I'm use to tinkering with the nitro planes, so when I started reading up on the electrics it was kind of overwhelming trying to figure out all the numbers. Starting to get a grasp of it now ( I think ) LOL. Any how thanks again, now its time to order up some goodies.
It took me over a year to get comfortable with E Power, dont rush it, take your time, it almost overwhelmed me at first, I was ready to go back to Nitro Look at Heads up Rc Motor pages, Jeff has a lot on info there, I learned a lot by looking at heads up RC motor pages and the info given with the different motor power systems and thrust Measurements, and by emailing Jeff, Take care and have fun, Chellie

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
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Old 01-06-2013, 04:17 PM   #13
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EVERYTHING YOU WANTED TO KNOW ABOUT ELECTRIC POWERED FLIGHT
http://www.wattflyer.com/forums/showthread.php?t=31368

Long Island Silent Flyers
www.lisf.org
Eastern Soaring League
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Old 01-06-2013, 08:19 PM   #14
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Originally Posted by Bugle'em View Post
Thanks for your input, and the links, some good looking planes you got there.
Now i'm off to read up on the Battery back up. Then again I might just wait tell the morning as I think I've stressed my brain enough for tonight.
Yeah
IMHO, it's mandatory to put battery backup systems into these larger giant scale models. (Or for that matter, any model with a lot of building time, or $$$$ invested in it.) Both for safety, and for reliability. Electric giant scale models get expensive real fast.

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