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Old Jan 23, 2006, 05:01 PM   #691
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Question from a new ork owner.

I bought a logo 10 carbon a couple weeks ago with the neu 1910 1.5y and I am running 10s1p (2 5s1p). Wondering if someone can tell me a battery/pinion setup for doing some duration flying with this motor thats more than the 7.5 minutes flight time. Mind you, I love the balisstic nature of this setup but sometimes you feel like a nut, and sometimes you don't.

By the way LOGOs rock. I should have got one a long time ago.
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Old Jan 23, 2006, 05:49 PM   #692
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You can run the same setup with an 8s2p-4200 packs and get about 12-15 minutes duration. Instead of a 17T pinion, you could go up to a 20T.

-- Gary
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Old Jan 23, 2006, 05:52 PM   #693
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Quote:
Originally Posted by T_MECO
I bought a logo 10 carbon a couple weeks ago with the neu 1910 1.5y and I am running 10s1p (2 5s1p). Wondering if someone can tell me a battery/pinion setup for doing some duration flying with this motor thats more than the 7.5 minutes flight time. Mind you, I love the balisstic nature of this setup but sometimes you feel like a nut, and sometimes you don't.

By the way LOGOs rock. I should have got one a long time ago.
What ESC and bec are you running?

Thanks,
Don
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Old Jan 23, 2006, 06:20 PM   #694
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Hey Guys.

THis thread is now 14 pages long, and it is impossible to find the posts with the specs for all the 19xx series ORKs. Can someone point me to a website or something, that has all the info for all the models that will be available?

Thanks!
Don
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Old Jan 23, 2006, 06:51 PM   #695
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No - it doesn't exist, but you can ask Steve Nue or DMA when they might update their websites .
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Old Jan 23, 2006, 07:17 PM   #696
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Quote:
Originally Posted by derway
What ESC and bec are you running?

Thanks,
Don

Using the Jazz 55-10-32 amp esc



Quote:
Originally Posted by GGoodrum
You can run the same setup with an 8s2p-4200 packs and get about 12-15 minutes duration. Instead of a 17T pinion, you could go up to a 20T.

-- Gary
Thanks Gary.
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Old Jan 24, 2006, 07:50 AM   #697
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So would you guys say that this is "the" motor to get for larger helis?
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Old Jan 24, 2006, 12:22 PM   #698
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ORK data.

Is this data here as good as it gets, or are there some real numbers that have superseded these?

http://www.rcgroups.com/forums/showp...9&postcount=73

Thanks,
Don
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Old Jan 24, 2006, 01:37 PM   #699
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Here are the numbers I use:



I think most of the numbers are the same, except for the kVs for the 1912s, which are higher than I had them originally.

-- Gary
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Old Jan 24, 2006, 02:47 PM   #700
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Thanks Gary.

I notice a few of the 19XXs have already shown up in motocalc, and with slightly differening constants. Interesting to know where they got them.

Thanks again.
Don
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Old Jan 24, 2006, 06:18 PM   #701
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Quote:
Originally Posted by derway
Thanks Gary.

I notice a few of the 19XXs have already shown up in motocalc, and with slightly differening constants. Interesting to know where they got them.

Thanks again.
Don


Motocalc has real some nice software that allows you to compute motor constants from actual test date. That could be where they came from. In fact it would be a good for someone to do that with a few ORK motors that are common in helicopters and post the results. Perhaps that would shed some light on why KC’s spreadsheet says the 1912/1.5Y should run cooler than the 1515/2Y but in actual use is the opposite.


RC
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Old Jan 24, 2006, 06:33 PM   #702
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If you let me know which one is you need info for I will get data for current production.

Steve
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Old Jan 24, 2006, 06:38 PM   #703
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Quote:
Originally Posted by RC Man
Motocalc has real some nice software that allows you to compute motor constants from actual test date. That could be where they came from. In fact it would be a good for someone to do that with a few ORK motors that are common in helicopters and post the results. Perhaps that would shed some light on why KC’s spreadsheet says the 1912/1.5Y should run cooler than the 1515/2Y but in actual use is the opposite.


RC
The spread sheet can't do everything. In the case of the 1912 and the 1515 motors there are 2 important differences. First the commutation frequency for the 1912 is higher than the 1515 as the 19 has 8 poles vs. 4 for the 1515. Second item is that the 1515F has a case that in finned for added cooling. Both items can make the difference you see vs the spread sheet.

Steve Neu
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Old Jan 24, 2006, 06:49 PM   #704
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Hi Steve,

I'd like data for the 1902-3 and -2.5 and -2
and 1905- same winds.

Thanks!
Don
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Old Jan 24, 2006, 06:57 PM   #705
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Mike, have you actually tried both motors in the same setup? I have, and the 1912-1.5Y does not run any hotter than the 1515-2Y on 10s. What Chris saw on a dialed down 1912-1.5Y on 12s is just not applicable, IMO. Ever run a 1515-2Y on 12s? I have, and it got to about 200F in a heartbeat!

With a fan, like the Actros, Orbits and Hackers, the 1900 series will run cooler too, probably a lot cooler than any of those, but we'll see.
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