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Setup advice for my Electric Glider

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error404:
I am setting up my electric Glider pictured here. 2mtr wingspan. No ailerons.



I am going to use a Race 700 Speed motor. (originally there was one in it, so will stick with the same).


Specifications:
Operating voltage range  7,2...9,6  V
Blockierstromaufnahme 90  A
Diameter 44,5  mm
Free shaft length 10,5  mm
Case length 66  mm
All-up weight, approx.  362  g
Maximum efficiency 69  %
No-load current drain (A)  3,3  A
Charging rate at max. efficiency 17,5  A
Permissible motor direction  R und L  
No-load speed 19000  U/min
Nominal voltage 9,6  V
Shaft diameter 5  mm

My question is what speed controller would be best and what battery also would you recommend?

Thanks

Anthony

Happy Days:
Don’t know many Brushed motor speed controllers Anthony. They are rather ‘old technology’ and in-efficient compared to modern brushless motors.

Out of curiosity, is there any particular reason why you want to use that motor instead of a brushless equivalent?  

Keith

error404:
Keith,

I have one of these speed 700 motors new and still in the box. I want to use it as this was the original type of motor in the plane. Shame to leave it unused. I also have the folding prop for this aswell.

I have an 8 cell 1500NiMH battery which i am thinking of using.

What type of brushless motor would you think would suit this size of plane? Just out of curiosity.

Happy Days:
Hey Anthony,
Without knowing the weight of your model I wouldn’t know what to suggest. There is no direct method (that I know of) to establish a brushless outrunner equivalent of your brushed motor. :!:

However,……………the manufacturer ‘AXI’ make very good outrunner brushless motors. (I can vouch for that.) http://www.modelmotors.cz/index.php?page=1 On the right hand side of the above link they have a calculator to establish which of their range would work best in your model. (Shown as "Fast AXI Setup")

Once you’ve established the brushless spec needed to fly your plane you could then look to other (cheaper) manufacturers for the same spec motors from their range. :wink:

As you probably already know, brushless motors use less current to produce the same amount of power at the prop than brushed motors, so you get longer flights from your batteries. :D

Might take you some work to modify the fuse though :(

Oh well, No Pain = No Gain!
K.

error404:
Modifying the fuse is definitely something I wanted to avoid.

Will have a look at the calculator once i way the model and see whats available.

Thanks

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