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Old Nov 18, 2012, 06:23 AM
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Joined Jul 2011
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Is Scorpion SII-6530-150KV better than Hacker Q80-8 for 2,2m

It has attractive 150 Kv vs hacker`s 190kv , 5800watts max peak power. did anybody try this motor?
With this motor my EF Yak-54 will weight about 8800gramms (with 500012s)
i think scorpion 5535 motor will not be enough and it is lighter in 100gramms

PS, Im curious why Hacker A-80 has only 5000watts, but Q80-8 makes 5800watts. Q80 is lighter and smaller than A-80. Hacker i think cheats!
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Old Nov 19, 2012, 04:08 PM
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Fourdan's Avatar
Antony (France)
Joined Sep 2003
2,791 Posts
Hi
Scorpion has also a SII 6530-180 (close to Hacker)
Scorpion:
More squared (diameter 76.7 instead of 88.5mm)
(body length 66.5mm instead 72.2mm)
Peakeff 93% @ 40V
I measured Kv 169 rpm/V (180 rpm/V announced)
with Scorpion Commander 130A50V
It would be interesting to compare (via the same tester and instruments)
Ri (mohm)
Io @ 40V
or I(amps) for the same prop, same rpm, WOT by adjusting the voltage
Unfortunately I have no Hacker to measure
Weights are similar : Scorpion 1048 g (instead of Hacker 1075g)
Personnally I would take the Scorpion (reason = more squared)
Louis
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Old Nov 23, 2012, 12:32 PM
JustFlying
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Based on my passed experience on big Scorpion motors as well as those of others, I will stay clear of big Scorpions. Hacker is by far the superior motor of the two.
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Old Nov 25, 2012, 03:00 PM
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United States, OH, Cincinnati
Joined May 2008
226 Posts
NO!!
For motors that big, go with Hacker! Much better quality; I have had many larger scorpions with issues, Hackers are much more solid. You can drive a Hacker above and beyond the specs, whereas Scorpion posts that actual limits of the motor.
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Old Nov 25, 2012, 03:02 PM
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Hacker is not cheating, the A series and Q series are totally different. The Q series came about because Hacker was losing out on larger motors due to their heavier weight. To stay competitive they reconfigured the outrunner and now have a great Q series.

The Q series has a larger diameter, but is much shorter in length. They even revamped the mounting method to reduce weight further.
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Old Feb 07, 2013, 01:59 PM
rip
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United States, FL, Niceville
Joined Jan 2013
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Quote:
Originally Posted by gaRCfield View Post
NO!!
For motors that big, go with Hacker! Much better quality; I have had many larger scorpions with issues, Hackers are much more solid. You can drive a Hacker above and beyond the specs, whereas Scorpion posts that actual limits of the motor.
I maybe naive but no piece of equipment is intended to run beyond their stated specs. If Hacker motors were intended to be used beyond the specs why doens't Hacker publish better specs... most likely because they would not pass the test.

When we build wings at Boeing we do not make them stronger than they need to be so that someone says Look this didn't break at 2 times the stated limit. Engineer says: this must break at this load. And they are built so that THEY BREAK at the load indicated on the specs.

my grain of salt.
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Old Feb 08, 2013, 01:50 AM
JustFlying
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Joined Dec 2005
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Did you ever hear of the term "safety margin” ? Many companies give the specs for the client not to go beyond, but the equipment can actually tolerate more than that. That is because untrained people do not test and operate it as they should. Your example of Boeing there are only qualified people working with the equipment and therefor the real breaking point is stated in the specs.

That said, I do not recommend using RC equipment beyond their published specifications, especially not to beginners. Some experienced people will exceed the specs but that is only under certain conditions and they do it only in a certain way.

Like I said before, big Scorpion motors are not as good and give problems even long before reaching the given specs.
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Old Feb 08, 2013, 02:11 AM
Inspiration
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United States, MI, Ann Arbor
Joined Aug 2011
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Quote:
Originally Posted by BorisKa View Post
It has attractive 150 Kv vs hacker`s 190kv , 5800watts max peak power. did anybody try this motor?
With this motor my EF Yak-54 will weight about 8800gramms (with 500012s)
i think scorpion 5535 motor will not be enough and it is lighter in 100gramms

PS, Im curious why Hacker A-80 has only 5000watts, but Q80-8 makes 5800watts. Q80 is lighter and smaller than A-80. Hacker i think cheats!
Maybe you wanna try this one: a 5055 sized motor (stator size). 6530 is 92% of this 5055 in size.

here is some pic when i do the rewind.
some specks:
0.2mm laminations
curve magnets
12N10P
0.5mm air gap
4 bearing system
8mm shaft









650 CNY no including shipping. This is a "abandoned" motor, original company stoped investing in the development of this series. Though great quality, these stocks are sold at just basic material price.
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Old Feb 12, 2013, 02:29 PM
Crash=change of flying medium
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Boulder, CO
Joined May 2002
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Quote:
Originally Posted by modisc View Post
these stocks are sold at just basic material price...
$650 CNY is about 105 US$, this hardly seems "material price" when HK sells similar sizeTurnigy motors for $46, http://www.hobbyking.com/hobbyking/s...ner_Motor.html.
Unless that unknown company used Swiss bearings and German steel, it's hard to imagine the cost of materials being so high...
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Old Feb 12, 2013, 09:41 PM
Inspiration
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United States, MI, Ann Arbor
Joined Aug 2011
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Quote:
Originally Posted by bluesky123 View Post
$650 CNY is about 105 US$, this hardly seems "material price" when HK sells similar sizeTurnigy motors for $46, http://www.hobbyking.com/hobbyking/s...ner_Motor.html.
Unless that unknown company used Swiss bearings and German steel, it's hard to imagine the cost of materials being so high...
A single piece of magnet in the 5030 cost 25-30 CNY. Do the calculation.
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Old Feb 13, 2013, 07:08 AM
Aka: Tom Jenkins
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Palm Beach County, Fl.
Joined Aug 2008
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Quote:
Originally Posted by bluesky123 View Post
$650 CNY is about 105 US$, this hardly seems "material price" when HK sells similar sizeTurnigy motors for $46, http://www.hobbyking.com/hobbyking/s...ner_Motor.html.
Unless that unknown company used Swiss bearings and German steel, it's hard to imagine the cost of materials being so high...
The motor listed is good for 1500 watts and has a 6mm shaft.
I like the idea of a 4 bearing, 8mm shaft on a motor this size. A hundred bucks for a motor kit this size has all others beat.
Yo blueski, have you ever priced Scorpion motor kits?
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Old Feb 13, 2013, 12:32 PM
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United States, MI, Ann Arbor
Joined Aug 2011
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Quote:
Originally Posted by ApexAero View Post
The motor listed is good for 1500 watts and has a 6mm shaft.
I like the idea of a 4 bearing, 8mm shaft on a motor this size. A hundred bucks for a motor kit this size has all others beat.
Yo blueski, have you ever priced Scorpion motor kits?
the 4 bearing, maybe too much, but this is obviously for a plane. the 8mm shaft maybe sufficient since this is for plane, not for a heli.

Scorpion's factory is basically "next to" the company who made the 5055 I showed, actually. ^^ They are in the same city, probably the same industrial garden. As i said, 100% profit for a RC motor, but this is really understandable. Considering iphones's material cost vs its actual cost, that would be like 400% profit, right?

Hope you are going fine with your next winding project, Apex . For your 12N8P 4035, I suggest you try the STSD ^^
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Last edited by modisc; Feb 13, 2013 at 12:37 PM.
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