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Old Dec 16, 2011, 06:46 PM
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Five propellers tested


Testing a newly received motor, I have used five propellers found in my drawers.
These measures are given as is, results may vary according to configuration.

Battery Orion 3S 4000 mAh 30-60C fully charged before each test
ESC Hobbywing Pentium 30A - Motor Turnigy Park 480 850KV max 250W
Turnigy Servo Tester - Junsi PowerLog 6S Wattmeter - LogView software



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Old Dec 16, 2011, 07:00 PM
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very nice info cheers

could you do the same tests again with a dt700 please?

oh and remember to oil the bearings before 1st run as they come dry
Old Dec 16, 2011, 10:16 PM
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Since it looks like you are testing the new motor out you may want to give a APC 10x3.8 prop a try. For me it has beaten the efficiency of the 10x4.7 by a bit in some setups reaching 10g/w. Nicely done by the way
Old Dec 17, 2011, 02:01 PM
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Thank you for your appreciation and your suggestions.
Some new motors and propellers are on their way.
Tests will be made as soon as I will get them.
Old Dec 17, 2011, 05:39 PM
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This is very informative, keep up the good work! And I second the DT700.
Old Dec 18, 2011, 12:46 PM
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DT700 is ordered, APC 10x3.8 also.

Two pics added: Efficiency graph and test bench.

Old Dec 18, 2011, 01:09 PM
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thanx bruv had a thought on the dt700's aswell.......

i suspect they run rather poorly if you dont oil the bearings when you get them but have no data, could you please test them dry as they come from HK then oil them with whatever you like and see if anything shows up perfomance wise? cheers

in my blog there is a dt700 vid i did with a few mods to help them last longer
Old Dec 18, 2011, 01:28 PM
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Quote:
Originally Posted by Mortimer View Post
Testing a newly received motor...
Thanks for doing the tests.

Trying to understand your chart. Does it say that the 10x4.7 APC draws 16.9 amps and produces 1100 grams of thrust?
Last edited by RCvertt; Dec 18, 2011 at 01:33 PM.
Old Dec 18, 2011, 01:38 PM
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Quote:
Originally Posted by Mortimer View Post
Thank you for your appreciation and your suggestions.
Some new motors and propellers are on their way.
Tests will be made as soon as I will get them.
Nice test. The results are fairly obvious. You can pretty much look and feel the prop and know the answer. Those black props are simply not up to task. They are cheap and good for crashing.

However I am running the exact same motor with 11" X 4.7" prop. It will be very interesting to test the 11" X 4.7" apc slow flyer, 12" X 3.8" slow flyer and some equivalent apc thin electric props. Maybe even some Graupner props.
Old Dec 18, 2011, 01:55 PM
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" Does it say that the 10x4.7 APC draws 16.9 amps and produces 1100 grams of thrust? "
Yes. But this value is only valid with the motor I used.

You might also be interrested by a previous test of five motors and one propeller done before: showthread.php?t=1388583&page=4#post19995480
Measures vary according to the motor behind the propeller.

11" X 4.7" apc slow flyer and 12" X 3.8" slow flyer are coming.
Old Dec 18, 2011, 01:59 PM
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And the winner is.....
....Graupner 11x5
Old Feb 10, 2012, 05:34 AM
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was there any updates on the dt700's?
Old Feb 10, 2012, 05:44 PM
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It's under way. Coming soon.
Old Feb 10, 2012, 06:19 PM
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Great test!
Old Feb 10, 2012, 07:51 PM
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Good work, thanks!


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