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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 D (mm) 10
Total Length E (mm) 77
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Customer Data

Weight: 79g Quantity: 
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stock
10+
Price$13.12


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 Customer rated
5204
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Total of 321 discussions.
ashwin  36 points - 4/16/2014
 
4 cell not good it may burn out the windings use 3s or some 12 v battery. you sacrifice 1 motor and see if it burns out and tell us
Chamika Janith  4 points - 4/14/2014
 
WIl this motor work on 4cell battery
 marinus 58 points
According to the specs not, but David Windestal uses this motor on his 4 cell powered tricopter 2.6HV.
 sirglider 299 points
It does work, but you have to use smaller props. Watch the maximum current draw. It works perfect for me with a 4S and 9x3.8 props
c0p0ut  2 points - 4/12/2014
 
****
Isak  6 points - 4/3/2014
 
Im wondering if these motors will fit these motor mounts: *******shop.flitetest****/multirotors/strai
ght-motor-mount-13-370-pair/
 jordster1998 6 points
i would say so i reciently built davids tricopter and used these motors and there a great job i would say you could just drill a new hole on the motor mount or the mount that comes with the motor if it doesnt fit best of luck building :)
hjtse  2 points - 3/31/2014
 
I am trying to do an FPV flying, but flight lasts only about 6-7 mins. The quadcopter (10X4.5 props, NAZA V2, 2200mAh 3S 20C LiPo, Turnigy Plush 30Amp ESC, GoPro) is about 1.5kg. I would like to invest in new batteries that will allow me to get longer flight times. Anyone had better luck with differnt batteries for this motor?
 anikeev 972 points
In common, one motor requires 18A. 4 motors - 72A. Your battery appears to be 20C and 2200mAh, so it can give 22x20A or 84A for not so long. You need to get more capacitive battery i.e. 5000mAh (and 20C). I use zippy flymax 5000mAh on my quad and have 8-10min flight time, but my quad is 2.2kg. You can also decrease weight of the flame if it's sellmade but it's better start with battery. BTW you can use separate battery (like 3S low-discharge Rhino for TX) for your flight controller, fpv transmitter, LEDs and other stuff.
BEST ANSWER CREDIT AWARDED
 hjtse 2 points
thanks for the help anikeev. Would having a separate battery for the flight controller, fpv, and other stuff help with longer flight times even if it contributes in more weight?
 anikeev 972 points
Main battery need to give high power to motors and voltage doesn't matter so much. All other equipment requires 12V and not so much power BUT the less voltage battery gives the more power needed to convert it. Using all of this with only one battery will shorten flight time. As example: when I plug navigation LEDs (LEDs shouldn't demand too much power huh?) to main battery, I have only 4-5min flight time instead of 8-10 min.
 hjtse 2 points
I'll get another smaller battery then. thanks again for the help
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!


6 comments. Reply..

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