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Reload this Page Align BL815 and BL855 Servo Test


700 Class Electric Helicopters 700 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 07-20-2014, 09:50 PM   #1 (permalink)
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Default Align BL815 and BL855 Servo Test
Quick video I made demonstrating the efficiency of the Align BL815 and BL855 servos.

Hope you guys enjoy!
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Old 07-21-2014, 07:55 AM   #2 (permalink)
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Hey Darrick, thanks for the video. That's crazy that was all the battery it took for. Just a quick confirmation on the BL855H, is this servo a 1520 servo? or 760? Thanks!
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Old 07-21-2014, 11:27 AM   #3 (permalink)
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Both servos are 1520.
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Old 07-21-2014, 11:44 AM   #4 (permalink)
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Cool, thanks Darrick!
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Old 07-21-2014, 11:52 AM   #5 (permalink)
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Sweet! We keep hearing coreless provides far less efficiency but far better performance in start stop speeds.

What's your feeling with these servos? Does it still hold true that coreless performs better?
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Old 07-21-2014, 12:28 PM   #6 (permalink)
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Truthfully, I'm not sure I could provide a useful comparison, since I've been running either Futaba or Align brushless servos since 2011.

Last set of coreless servos I had were S9451s back in early 2011. So at this point, I'm very accustomed to the behavior of the brushless servos.
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Old 07-22-2014, 12:22 PM   #7 (permalink)
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Nice Darrick! I miss flying with ya or should I say you teaching me a lot! Hope all is well!
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Old 07-22-2014, 05:13 PM   #8 (permalink)
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i am very impressed with these servos too they are very smooth and very quiet like bls 451's
i have the new align 700l dfc and after 3 flights at around 4 mins i had 80% left in my 2600 2s rx pack
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Old 07-30-2014, 05:05 AM   #9 (permalink)
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Given that these servos are not very power hungry, what capacity BEC do you or would you guys run on a HV setup?
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Old 07-31-2014, 03:27 PM   #10 (permalink)
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i dont think this deserves a new thread so ill just ask here.


what is the difference between the BL800H and the BL815H??

the 815's look newer and better and are about 25 bucks cheaper??

same thing goes for the 850 and 855 tail servos??


im just confused here as to what align is trying to do? lol
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Old 08-02-2014, 06:08 AM   #11 (permalink)
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Really impressed. Nice smooth machine BTW.

PM sent.
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Old 08-16-2014, 11:00 PM   #12 (permalink)
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Good job! I like it when someone can put the money where their mouth is!

I second the question on what people think a suitable BEC is?

I was planning on using a Heli Jive 120 on mine, the BEC is 5A continuous, 15 amps peak?
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Old 08-21-2014, 02:42 PM   #13 (permalink)
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Is that a Demon I see on there?

*edit* never mind....its not
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Old 08-22-2014, 08:09 AM   #14 (permalink)
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? anyone ?
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Old 08-22-2014, 12:34 PM   #15 (permalink)
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I will guess, is one brushless the other coreless?
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Old 08-22-2014, 05:53 PM   #16 (permalink)
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No, both servos are Brushless.

Spec wise, both servos are very similar. The 815's feature the shrouded servo lead, and a more competitive price.
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Old 03-23-2015, 04:26 PM   #17 (permalink)
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What's the Hz on the Bl855H?
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Old 03-23-2015, 04:33 PM   #18 (permalink)
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I run mine at 285Hz using the CGY750.
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Old 03-23-2015, 04:35 PM   #19 (permalink)
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I run mine at 285Hz using the CGY750.

I believe the servos are rated for 330Hz, but I have not tested the cyclic servos at this frequency.
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Old 03-23-2015, 11:09 PM   #20 (permalink)
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Ok, I'm having issues with the tail gain with my VBAR which is currently set at 330 hz. Just wondering if I should try 250 Hz.

Thanks
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