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> Electric Motors > Outrunners by size
> Electric Motors > Outrunners by size > Bell Type

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hexTronik DT750 Brushless Outrunner 750kv

hexTronik DT750 Brushless Outrunner 750kv

Looks can be deceiving. This outrunner is around twice the size of a towerpro bell motor, and swings a much larger prop. Its the motor used on some of Art-techs new plane kits, which is testiment to its durability, ease of use and quality.
The DT700 will swing an 11x4.7 SF prop nicely, to produce more than 900g of thrust.
Its great for larger GWS foamies or parkfly planes.

Spec.
Required Voltage: 11.1v
Suggested Battery Capacity: 1300mAh +
Suggested Prop: 11x3.8 or 11x4.7
Max current draw: 18A (with 11x4.7 prop)
Max thrust: 1000g+
No Load Current: 1.4A
Shaft: 4M (perfectly suited to Towerpor/GWS SF Slow Fly props)
Weight: 78g
Diameter: 41mm
Overall length: 77mm
Kv: 750rpm/v
Comes with mount as shown in Image

Test Report.
We used the DAT700 outrunner to power the an Art-tech Pitts. Run with a 1300mAh 3S1P 20C pack, 18A BESC and 1147 GWS/Towerpro prop, the Art-tech pitts ran nicely. Excellent climb rate, though not hoverable, and with 13minute flight times or more, we were very impressed.
A very efficient outrunner for slower flying models of up to .15 size.



PRODUCT ID: DT750

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Kv(rpm/v) 750
Weight (g) 78
Max Current(A) 18
Resistance(mh) 0
Max Voltage(V) 11
Power(W) 0
Shaft A (mm) 4
Length B (mm) 37
Diameter C (mm) 40
Can Length (mm) 10
Total Length E (mm) 77
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Customer Data

Weight: 79g
Quantity: 
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Price  $10.24
was $13.65

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 Customer rated
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Total of 391 discussions.
Gerard  22 points - 7/25/2015
 
Can these motors be used with 10" props? Most low-cost frames recommend 10" props. Thanks
 anikeev 1371 points
Yes, you can. But your aircraftr should be VERY lightweight - about 1 kilo or less.
 Gerard 22 points
Really? My quad weighs about 1.8 kg. Can 10" props only be used with very light vehicles or the problem are these motors so with other motors I could use 10" props without problems? Thanks!
 anikeev 1371 points
This motor is powerful but slow (that's what 750KV means). When I had a 2.2kg quad It could take-off only with 12" props. I had a bad flight controller tho... I tried 11" props with that, but I could take-off only on 90% of full throttle. 10" didn't work with that 2.2 kg quad at full throttle. If you can't replace props with bigger ones, then you need a motor with bigger KV (less powerful at torque, but more speedy). I think there's a 900KV version of this DT motor. You can ask people who use it on dedicated page. Hope that helps.
BEST ANSWER CREDIT AWARDED
 anikeev 1371 points
You can try to use 10" props with this motor if you power it with 4S battery, not with 3S. So you'll get more RPM. Never tried that because my ESCs are only 2-3S. But there's a lot of people who run this motor on 4S battery.
 Gerard 22 points
Thank you very much for your explanation, I'll have to think about that. By the way, do you know any low-cost frame which can be used with 11" props? I wanted to get the Reptile500 but I was told prop wash would be too strong with 11" props...
 anikeev 1371 points
Don't know too much about frames - I use DIY frames. I got HK 580 frame recently but never tried yet.
Dr. NLT  58 points - 7/15/2015
 
Ok quick question . I am building a rcexplorer tricopter v2.6hv using these motors. I have the same props David used , 9x4.7 . Only problem is I ordered a 3s 3000 !!!! I needed a 4s 3000 grrr . I guess we can skip the 4s for now . My question is would I be fine running the 9x4.7 on 3s or do i need a bigger prop like 10x4.7 or 11x4.7?
 EricBR 403 points
9x4.7s could work if your tricopter isnt a brick. but do look for bigger props if you plan use the 3s battery.
 anikeev 1371 points
I use these motors on my quad with 3S lipo. First frame was 2.2kg and could barely take-off only with 12" props. Second frame was 1.5-1.4kg weight and works fine with 12". My new frame should be about 1.1 kg, and I will use it with 12" props too. This motor is awesome with 11-12" props on 3S.
bernardo  1 points - 5/13/2015
 
what type of connection should i use if i want to link everything together (motor/esc/battery)? should i use bullet connectors? im using a arduino shield for my hardware! any help is appreciated!
 anikeev 1371 points
I use 3.5mm bullet connectors to connect motors to ESC and ESC to distribution power board. Power board to battery - depends on battery connector (I use XT60). and control wire from ESC to arduino shield fits perfectly (same 2.54mm step between pins).
Nick K.  13 points - 5/12/2015
 
Where can I find a replacement shaft for this motor?
 anikeev 1371 points
I don't know what shouid I do to break or bend this massive shaft. But if I could damage it I would try to replace it with shaft that comes with metal construction kit (it's very popular in Russia and ex-USSR). And it's 4mm diameter too.
 anikeev 1371 points
Now I can tell, that you can use shaft replacement from NTM 3542 motor. Hope that helps.
uncleray  6 points - 5/9/2015
 
For my first quad build, what prop and adapter would you recommend ?
 anikeev 1371 points
This motor works good with 11" props. I use it with 12" because my quad is too heavy. As I said before, I use three nuts to install the props and it still work for me. When you get your motors use epoxy glue on the bottom of the bell, where three wires comes to coils - it's weak spot and because of vibrations you can loose contact. Motor mount have small hex screw (1.5mm hex) - it's better to tighten it and fix with epoxy or nail laquer. You can still use 9" props with this motor if your quad is really lightweight.
BEST ANSWER CREDIT AWARDED
 uncleray 6 points
Thanks for the great advice. I just ordered 11" props and lock tight about 1 hour ago.
Customer Reviews
Review Blogs for this item
HexTronic DT750 in the test bench
Jan A
Overall Rating
DAVID M NORTH
likes
ValueUNRATED
QualityUNRATED
50 thumbs up!
Because of the price and reasonably accurate description, I'll give it five stars. Modest 8mm (!) bearing tube and bearings don't sound all that great, but the power efficiency is pretty darn good if you can carry the nearly 3oz weight.

For example, a 10x4.7 APC SF plus TP 1320 3S produced about 34oz thrust using 13.96 amps. Both Drive Calculator and Badcock's web page put this as 84-86pcnt efficient. 11x4.7 APC Sf produced over 40oz thrust for a bit over 17 amps. That's still very good efficiency!

Again, if the weight and 4mm screw shaft don't scare you, it will definitely pump out the stuff even if it sounds a bit like a coffee grinder. Added bonus: very nice motor mount that will work great with your MicroDan.


9 comments. Reply..

Overall Rating
Sascha Fritz
likes
ValueUNRATED
QualityUNRATED
27 thumbs up!
This are the results of my test, measured with my eagel tree:

11 x 7 GWS HD (not the slowfly version)
peak: about 13.5 A
after 20 sec about: 12.0 A
on 3 S with on 10.5V

11 x 4,7 GWS
peak: about 15.0 A
after 20 sec about: 13.0 A
on 3 S with on 10.4V

12 x 6 GWS HD (not the slowfly version)
peak: about 15.0 A
after 20 sec about: 13.0 A
on 3 S with on 10.4V

I couldn't measure trust but from my feeling the trust with 11x4,7 and the 12x6 are nearly the same. The speed with the 12x6 is higher. This will be my choice.

I will put the motor into my selfmade Extra with about 700g, I hope it is a good choice.

I think the motor could spin a bigger prop, next time I try the GWS 12x8 HD and the GWS 11x8 RS.

I don't no if I have get a lower Kv version. I read in the rcforum about measurements which are close to Davids.


4 comments. Reply..

Overall Rating
Robert Pacheco
likes
ValueUNRATED
QualityUNRATED
18 thumbs up!
Wow. This motor is such a great value. It pushes my 2lb Das Ugly Stik around with authority. I got 34oz thrust with 11.1v 20c 1600 Lipoly and 11X7 SF APC prop. This puts me into larger RC planes at a modest cost.
**Neons** Bob


2 comments. Reply..

Overall Rating
Shawn Anderson
likes
ValueUNRATED
QualityUNRATED
18 thumbs up!
I think Dave got a dodgy motor because mine doesn't make any grinding noises at all. I don't know if I'd call it completely silent but it's no louder than any other outrunner of this size. And while I haven't tested my motor yet I do trust Dave's numbers post above. So, it's cheap, quiet and very efficient. And all for under $11. A bona fide bargain in my book.


2 comments. Reply..

Overall Rating
FOKKER DVII
likes
ValueUNRATED
QualityUNRATED
13 thumbs up!
Bought this for my Lanier Fokker biplane.
It is a good motor for this slow-flying WWI bird.
With this motor and APC 10*3.8 prop., the Longmax 1300 3S Lipo doesn't get hot and not even warm after 6-7minutes flight.
For this price, I like it very much!


8 comments. Reply..

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