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Aug 29, 2010, 11:45 PM
Artillery! King of Battle!
Brill 1's Avatar
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Build Log

The Turnigy Experiment™


I purchased a Turnigy CA80-80 brushless motor & Turnigy Monster-2000 ESC for possible use on an upcoming project. Being a life long Hacker snob, this was quite the leap of faith!

I built a test stand and purchased a Hyperion eMeter V2, these along with a borrowed setup of XPS 25C 5000 batteries wired in series & parallel for a total of 12S 10,000mah, I was ready to test.

I have ran one pack through the motor and the initial results look good. Results with a Xoar 24x12 prop & the pack fresh off the charger:

Volts 50
Amps 113
Watts 5167
RPM 6822

Not too bad! Temps were good on packs and esc, barely warm. The windings on the motor were a little warm at 180°F! This should really come down during flight.

I feel there is room to push the motor towards 6000 watts. I have a Xoar Electric 25x10, 25x12 & 26x10 on the way for further testing.

Thanks

Brian
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Sep 06, 2010, 06:29 PM
Artillery! King of Battle!
Brill 1's Avatar
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Testing with Xoar Electric 25x12


Finally got my new props and some time test!

Testing with the Xoar Electric 25x12 is looking good!

Watts 6500
Amps 143
RPM 6400

Not too bad! This is the target range was looking for!

I did have an issue with the motor/esc losing timing/sync and shutting down. I disabled the current limiting on the ESC and it solved the issue! I have been watching the temps on the ESC and it never reaches more than 120°F. The ESC is rated to 200amps and should be able to handle 10,000 watts, so 6500 watts shouldn't be a problem.

The windings are getter hot at 210°F, but the can of motor was only 110°F. I will continue to watch this temps and they should be lower in the air with better airflow.

All of the above readings were from a 6 minute test that consumed 6000mah. I am planning on using 2-6S 6000mah packs, but that might be too low of a capacity. Researching alternatives.

Still haven't purchased a new charger, so charging 4 6S 5000mah packs with the ThunderPower 1010C takes about 3 hours.

More details when I have them.

Brill
Oct 29, 2010, 01:03 PM
Jason
super_nova's Avatar
Just stumbled on this today. Now that its been awhile did you get this in a plane? What were your long term results with these motor and speed control?
Oct 29, 2010, 01:13 PM
Artillery! King of Battle!
Brill 1's Avatar
Thread OP
Well the short version is I never could solve the timing/sync issue with the Monster-2000 ESC. So I switched to a Castle ICE 160HV. The CA80-80 ran great with this ESC, I was very happy with it. But I wasn't able to perform any long term testing due to the fact that a Hacker A100-8 is now powering my 103!

For the price I believe the Turnigy CA80-80 is a good motor and provided nice power.

I hope to write up more details later.

Brill
Oct 29, 2010, 01:20 PM
Jason
super_nova's Avatar
I've been doing some more searching and saw in the 103 thread that you wanted to try this on 12S 6000mah. How did that go, did you have to end up switching to 10,000mah? I'm looking at the possibility of doing a 35%er on electric but on the cheap. Need something for IMAC next year but if electric won't work I'll just have to go gas The cost of name brand electric components (motor/speed control anyways) is pretty pricey for this size unfortunately!
Oct 29, 2010, 01:27 PM
Artillery! King of Battle!
Brill 1's Avatar
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I think the power the CA80-80 would be great for IMAC, I would use a 25x12 prop.

I didn't go with 2-6S 6000mah packs, I'm using 8000mah. The 6000mah might be enough for IMAC on the 25x12 prop. That prop provided plenty of speed.
Oct 29, 2010, 01:48 PM
Jason
super_nova's Avatar
Thanks for the replies! With your 8000mah setup what sort of flight times are you getting? Have to remember IMAC ends up using more power than 3D flying and I need probably 10min with an extra margin for holding pattern, landing, take off, etc...I would probably need to go with a 10,000mah. Plus more flight time just gives me more practice time as well.

Gonna bug you with one more question, you mentioned parallel charging in one of your posts on the other thread. How exactly does that work, and what charger are you using?

Thanks!
Jason
Oct 29, 2010, 02:38 PM
Artillery! King of Battle!
Brill 1's Avatar
Thread OP
I'm using the iCharger 3010B+ charger & ParaBoard from http://www.epbuddy.com for parallel charging. I can charge 4 6S-4000mah batteries at one time!

10 minutes of flight time on electric power will be stretching it in my opinion. But I don't know how much power is required for an IMAC sequence. Gas might be a better option, flight time is MUCH longer!

Brill
Mar 10, 2011, 10:02 PM
Fly it like you stole it..
Tram's Avatar
Seems perrrfect for a AMR Stick 50..
Apr 24, 2011, 07:59 AM
One cell short of a Pack
steve1814's Avatar
How did the 25X12 Electric prop fit and how would you mount a spinner? I was thinking on putting this in a 33% pawnee with a CC160HV on 10S2P...

Motorcalc says the 25X12 is good for this motor/battery/airframe combo.

Cheers,
Steve
Apr 24, 2011, 09:00 AM
Artillery! King of Battle!
Brill 1's Avatar
Thread OP
A 25x12 should be a great prop. I didn't test this size, but I did test a 24x12 and a 26x10 prop. The 25x12 should draw approximately the same as the 26x10, but will less thrust and more speed. You might also consider the 24x12 for the Pawnee, the amp draw would be low, resulting in long flight times.

To make a spinner you can either using a spinner that is secured with screws around the base or drill and tape the center of the prop shaft. There are several nice spinners available that mount with screws around the base.

Brill
Apr 24, 2011, 02:05 PM
One cell short of a Pack
steve1814's Avatar
Thanks Brill.

Do you know if the Prop holes are the same as a DA/DL 50? was thinking of getting a drill guide.

Cheers,
Steve
Apr 24, 2011, 02:48 PM
Artillery! King of Battle!
Brill 1's Avatar
Thread OP
Yup, the 4 bolt pattern matches a DA-50
Apr 25, 2011, 01:39 AM
One cell short of a Pack
steve1814's Avatar
Thanks!
May 16, 2011, 12:33 PM
Registered User
Alkaline's Avatar
The shaft on the motor is 8mm not 10mm so it technically does NOT match the DA-50 prop mounting patern.

I have also just purchased the motor and now I am trying to figure how I am going to drill out the prop.

I wish turnigy had gone for a 10mm center shaft...


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