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Xnova Motors Support Xnova Motors Factory Support


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Old 04-01-2019, 05:36 AM   #1 (permalink)
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Default 4530 vs 4525 lightening 700 size machine

I am trying to decide on 4525 vs 4530 similar if on 12s 700

All my current machines are 4525.

I am not a crazy demanding flyer but if there is no downside to 4530 I would go that way

Thoughts. Pro / cons
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Old 04-02-2019, 07:03 AM   #2 (permalink)
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I believe the only downsides to the larger 4530 motor is the additional weight and the slightly more expensive price tag.
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Old 04-19-2019, 11:50 AM   #3 (permalink)
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Quote:
Originally Posted by curmudgeon View Post
I believe the only downsides to the larger 4530 motor is the additional weight and the slightly more expensive price tag.
I was debating the same, the 4530 support 14S where the 4525 only supports 12S. The 4530 definetely needs a 160A ESC, however looking at the specs on the 4525 it might be better with a 130A ESC. I decided on the 4525 myself, now just debating if I use my 160A ESC or buy a 130A ESC for it...
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Old 04-19-2019, 09:33 PM   #4 (permalink)
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It depends on your heli & flight style.

If you're heavy on collective, I'd do the 160.

Although it's slightly overkill, I use a HW200 & 4525 on my Logo 700, but it's not exactly a lightweight.



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Originally Posted by tporter416 View Post
I was debating the same, the 4530 support 14S where the 4525 only supports 12S. The 4530 definetely needs a 160A ESC, however looking at the specs on the 4525 it might be better with a 130A ESC. I decided on the 4525 myself, now just debating if I use my 160A ESC or buy a 130A ESC for it...
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Old 04-19-2019, 09:40 PM   #5 (permalink)
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The power (watts) demand is determined by the mechanical setup (heli size, blade size, blade count, blade characteristics, desired head speed, collective pitch range, etc.) and flight aggressiveness of the pilot. Then one choses a power system (battery size and S count, motor size, ESC size) that can keep up with the power demands. A motor size in and of itself does not determine the size of ESC. For instance, if you have a large 800 size heli with a large 4535 motor powered on 14S, but you gear it appropriately for a low 1400rpm head speed for sports flying and shooting autorotations, a 130A ESC would work well and probably come back fairly cool.
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Old 04-20-2019, 11:25 AM   #6 (permalink)
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Originally Posted by curmudgeon View Post
The power (watts) demand is determined by the mechanical setup (heli size, blade size, blade count, blade characteristics, desired head speed, collective pitch range, etc.) and flight aggressiveness of the pilot. Then one choses a power system (battery size and S count, motor size, ESC size) that can keep up with the power demands. A motor size in and of itself does not determine the size of ESC. For instance, if you have a large 800 size heli with a large 4535 motor powered on 14S, but you gear it appropriately for a low 1400rpm head speed for sports flying and shooting autorotations, a 130A ESC would work well and probably come back fairly cool.
Well yes and no, a motor can only draw so much current, at some point when it is maxed out what it can draw, it will slow down. The 4525-530kv is rated for a max 95A continuous draw, I know it can for short periods draw more current, however how much more. A 130A ESC gives a 38% cushion, and would save flying weight, a 160A ESC is a 68% cushion on current draw for the 4525 motor...
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Old 05-01-2019, 03:22 PM   #7 (permalink)
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Quote:
Well yes and no, a motor can only draw so much current, at some point when it is maxed out what it can draw, it will slow down. The 4525-530kv is rated for a max 95A continuous draw, I know it can for short periods draw more current, however how much more. A 130A ESC gives a 38% cushion, and would save flying weight, a 160A ESC is a 68% cushion on current draw for the 4525 motor...
If you were responding to @Curmudgeon, then you should re-read his post.

What you are saying makes little sense - especially 37% and 68% - I know how you got the numbers but that really isn't how it works in a practical sense. Any of these motors can draw massive peaks for a short time, but that isn't how you size an ESC. Once you learn to fly 3D, you'll see your logs full of peaks that are well above your nominal ESC size (130A in this case), but that is by design. You size ESC for average not peak!!

Read what he wrote again - he has it right.
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