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Old Apr 20, 2012, 03:06 PM
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United States, IN, Indianapolis
Joined Dec 2006
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The official thread for electric powered setups for 50cc sized 3D airplanes

I'm seriously considering a 50cc 30% Sbach 342 on electric power. I've read several threads/posts on electric powered 50cc 3D airplanes; however, I feel it would be beneficial for this information to be located in a single thread. Therefore, I would like to have this thread be a place to discuss electric powered setups for 50cc sized airplanes in general. Please post the following setup information for discussion.

- Airplane (make, wingspan in inches, model)
- Motor
- Prop
- ESC
- Battery cells and capacity (i.e., 12S 5000mAh)
- AUW (lbs.)
- WOT Current (amps)
- WOT Power (watts)
- Flight times (min.)
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Last edited by racin06; Apr 20, 2012 at 03:17 PM.
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Old Apr 21, 2012, 12:23 AM
Pursuit of Happiness
Ron101's Avatar
Brentwood, California
Joined Jul 2007
7,199 Posts
I have a Dietrich 50cc extra 260 ( out of business now I think)
Haker A-60-18L
APC 24x12
Castle Creations Ice 160 HV
12s 30c 5000 mah thunder power ( just ordered 65c to replace old tired packs)
17 lbs
90 amps
4000 watts
6:30 minutes

It's been such a great setup, I've been flying it for 4 years and really love it it.
Guys that see it fly can't believe the power... much better pull out than a DA-50

I would like to get a new airframe mine is pretty tired looking... but I may just recover it next winter
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Old Apr 21, 2012, 11:15 AM
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Doug Bartley's Avatar
Canada, ON, Owen Sound
Joined Oct 2008
2,780 Posts
I have an Aeroworks 50cc 300 Extra. its powered by a Suppo 7035-9 (190kv) motor thru a 110 HV Castle Pheonix ESC. I use a Falcon 23/10 wooden prop.
Batteries are 2 6S/5000/ 30C Flightmax in series for 12S.
AUW is 19 lbs. Power tests show 99A and 4400watts, flight times around 6 minutes to date (7 flights) Amazing power verticals, easily outperforms an identical plane at our field using a cannistered DA50, 23/8 CF prop at 17 1/2lbs.
Flight times are longer on the gas tho. that could change with larger batteries, weight doesn't seem to affect the pull. Could also increase prop size up to 24/12 and 6000 watts with a bigger ESC. Don't really believe thats necessary, its already got lots of power. FWIW Doug B
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Old Apr 21, 2012, 04:22 PM
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GPstar87's Avatar
United States, WV, Wayne
Joined Jun 2011
41 Posts
I have a 50cc Quique Yak-54.
Motor is a Hacker A-60 18L
ESC is a Jeti Spin 99
Prop is Xoar 24 by 12
Batteries 12s 5000mah lipo (the old generation 2, which I think is 25c continuous)
Pulling about 85 to 90 amps
Weight is 16.5 pounds
I can't remember watts

The plane flies extremely well, but the motor always got pretty hot after each flight. Late February was my last flight on this plane and it was still running strong. I'm actually surprised the motor has lasted this long.

I'm getting ready to retire this plane and replace it with an Aeroworks 100cc Edge 540 I recently bought. Need to decide which motor is going in this one. Im thinking the Hacker A-100 or the new Q-80 they are releasing soon. I'll probably go with the latter, as it's about 1.5 pounds lighter than the A-100, but is capable of similar power (according to the Hacker guys at the Toledo Show).
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Old Apr 25, 2012, 10:15 PM
Retired RC Flyer
clt12981's Avatar
Jacksonville, Florida
Joined Jul 2008
220 Posts
Extreme Flight 88" Yak54 Black&Yellow 18lbs2oz. Hacker Q80 8m motor, CC HV160 ESC, AR9110X Receiver with TP 2200mah 2S Battery, Savik 1268SG Servos, 24/10 Xoar E Prop, 2-TP 5000mah 65C 6S Batteries, 116amps 5125 watts @6450rpm, 7 to 8 mins Flight Times depending on your flight style. Runs cool no heat problems, will pull out of a hover with 5/8 throttle, rocket out with full throttle,
Chuck
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Old Apr 26, 2012, 01:36 PM
JustFlying
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Joined Dec 2005
2,428 Posts
- Airplane – GW Sbach 342 30%, 2260mm
- Motor – Axi 5345/14
- Prop – Xoar 23x8 E – (Previously BR Models 22x10)
- ESC – CC Phoenix ICE2 120A HV
- Battery cells and capacity – 12s, 8000mAh, 25C
- AUW – 8.3kg / 18.3lb
- WOT Current – 99A (112A with BRM22x10)
- WOT Power – 4600W (5250W)
- Flight times – 15 minutes with good reserve
- R.P.M. – 8200 static, 8700 in flight (8000 / 8500)

The plane is actually overpowered, but I would not want less. There is no need to fly with more than Ĺ to ĺ power for most of the flight. The 23x8 produce less thrust and speed than the 22x10, but the 23x8 is a lot quieter. The average 50cc gas engine specification is around 3.8kW and spin a 23x8 prop between 6000 and 7200 r.p.m. depending on level above sea, engine and prop used. It is more reasonable to compare this motor to a 60cc to 75cc engine.
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Last edited by rebell; May 06, 2012 at 02:03 PM. Reason: It is Axi 5345/14 , not /16 as first posted.
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Old May 02, 2012, 01:07 PM
Registered User
Canada, AB, Clairmont
Joined Jun 2011
41 Posts
Airplane: Comp-Arf Extra 330L 2.3m
Motor: Hacker A80-10 180kv
Prop: Mejzlik 24-12
ESC: Castle Ice2 HV 160
Batteries: Turnigy Nano-tech 2x 6s 6000mah 25-50c
AUW - 21 pounds
WOT Current: 125amp
WOT Power: 5500watts
Flight times: 8-9 minutes minutes mixed 3d

I originally had a 3w 75 TOC IC engine in this plane. All up weight was almost identicle to the gasser after the conversion (comparing to full tank of gas), and power is a wee bit more with the Hacker.
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Last edited by dirtdr; May 02, 2012 at 02:28 PM.
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Old May 02, 2012, 01:11 PM
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Canada, AB, Clairmont
Joined Jun 2011
41 Posts
Airplane: Aeroworks Edge 540 50cc 88" ws
Motor: Hacker A80-10 180kv
Prop: Mejzlik 24-12
ESC: Castle Ice2 HV 160
Batteries: Turnigy Nano-tech 2x 6s 8000mah 25-50c
AUW - 18 pounds
WOT Current: 130amp
WOT Power: 5600watts
Flight times: 12-13 minutes minutes mixed 3d

This thing is CRAZY power for a 50cc airframe. With lots of throttle management and a full flight of 3d stuff (harriers, hovers, low and close stuff) I can get 15 minute flights. The extra bulk and weight of the 8000mah packs is barely noticeable compared to running 4000's and getting 7 minute flights.
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Old May 02, 2012, 02:01 PM
JustFlying
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Joined Dec 2005
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What size 3W did you use in the Extra?

What is the static RPM of the A80 with 24x12 prop?
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Old May 02, 2012, 02:18 PM
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Canada, AB, Clairmont
Joined Jun 2011
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Quote:
Originally Posted by rebell View Post
What size 3W did you use in the Extra?

What is the static RPM of the A80 with 24x12 prop?
Sorry.. missed that part. It was a 3w 75 TOC. It was swinging a 24-10.

Static RPM with the a80/6000mah/ 24/12 was around 7000, but it has been a while since I tacked it.. I could be wrong
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Old May 02, 2012, 02:24 PM
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Canada, AB, Clairmont
Joined Jun 2011
41 Posts
here is a short video of one of the first flights on the extra after the conversion. Prop used on this flight was the same 24-10 that the 3w was swingin.

Gerald flying his comp (1 min 49 sec)
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Old May 02, 2012, 06:48 PM
Extremely Twisted
cwojcik's Avatar
United States, NH, Epping
Joined Oct 2005
2,629 Posts
This is a lightweight setup for lighter, smaller 50cc airplanes. Works great for me!

- PAU 50cc Pitts Challenger
- Scorpion 5525-225
- Xoar 22x10 PJN
- Castle ICE2 120HV
- 10S 5000 mah
- 15 lbs
- 85 amps
- 3200 watts
- 6:00 flight time

Power is very good...very comfortable in 3D, good speed for precision, everything comes down cool enough.

Build thread: http://www.rcgroups.com/forums/showthread.php?t=1632054

PAU Electric Pitts Challenger (4 min 14 sec)
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Old May 02, 2012, 09:34 PM
Pursuit of Happiness
Ron101's Avatar
Brentwood, California
Joined Jul 2007
7,199 Posts
Hey dirtdr,

Nice setup, how are those nano tech 25c-50c 8000 mah packs holding up for you at 130 amps? do they heat up? how is the balance?
do you know the I.R. by chance

I've been eyeballing those packs for a big EDF jet I have but havn't heard much about them

Thanks for any info you have

Ron
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Old May 02, 2012, 10:30 PM
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Canada, AB, Clairmont
Joined Jun 2011
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Quote:
Originally Posted by Ron101 View Post
Hey dirtdr,

Nice setup, how are those nano tech 25c-50c 8000 mah packs holding up for you at 130 amps? do they heat up? how is the balance?
do you know the I.R. by chance

I've been eyeballing those packs for a big EDF jet I have but havn't heard much about them

Thanks for any info you have

Ron
So far they are holding up nicely but I only have a few cycles on them. Every charge they are almost perfectly balanced after flight.

The only downside of them (can be considered a good thing too) is that they do not drop off at all untill they are almost completely drained... if you happen to fudge a landing or two, or fly beyond your timer, they just die.

As for heat, i am running them without ventilation and after a hard flight they are barely warm.... but they only see more than 70 or 80 amps for seconds at a time... mabee 90 to 120 seconds out of a flight.

I have not checked the IR on any of them since new.
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Last edited by dirtdr; May 03, 2012 at 10:46 AM.
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Old May 03, 2012, 12:40 AM
JustFlying
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Joined Dec 2005
2,428 Posts
Mine is also TNT 25-50 8000 pack and the IR is 0.3mOhm. It will read 0.5 early in the morning on the first charge when the battery is cold, thereafter back to 0.3. I read somewhere else where that guy also get a IR reading of 0.3. It never reached below 20% capacity left so I donít know how they cut.
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