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Brushless system for ULTRAFLY BAE HAWK

Old 05-12-2016, 03:52 PM
  #1  
Davethebluessinger
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Default Brushless system for ULTRAFLY BAE HAWK

Bought this Ultrafly ARTF US NAVY T45/ BAE Hawk and want to install a brushless power train!
Original motor recommended Speed 400 brushed with gearbox delivering 180watts.
Plane specs:
28.7" Long
28.3" Span
152 sq inch Wing Area
Flying weight 20.1oz (20oz/sq ft)
The previous owner included a 6 x 5.5E APC prop.

I'd like to use some 3S 1300mAh Lipos I already have if possible.

Can anyone recommend a brushless outrunner that I can mount within the fuse where the original speed 400 would go please preferably HK.

Cheers!

Dave
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Old 07-22-2016, 03:48 PM
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cmdl
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http://www.hobbyking.com/hobbyking/s...ner_Motor.html may be a bit too much power since all you need is ~200W.
Try: http://www.hobbyking.com/hobbyking/s...er.asp?t=motor
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Old 07-22-2016, 04:45 PM
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solentlife
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First ... the Speed 400 is effectively a Brushed Inrunner. So now you are looking to put an Outrunner with spinning can in its place.

To be sure of clearance and no problems with this - an Inrunner Brushless may be the way to go.

But if you can get an Outrunner in and have 'can' spinning without problems ... then a look at the 26 - 28mm series motors over on Hobby King or HeadsUpRC.
As far as I remember a 400 is about 27mm outer diameter ... a 600 is 36mm outer diameter.

On a 6x5.5 prop - you will need a good KV rating of about 1600 or more to get the thrust.

The Turnigy 2826-6 2200kv will give you a good bump up in power and direct drive to that prop. A 1300 3S will be OK but at about minimum size.

Here's something :

Turnigy L2210-1650 Bell Style Motor (250w) (EU warehouse)

http://www.hobbyking.com/hobbyking/s...dproduct=18545



Turnigy L2210-1650 Bell Style Motor

Spec.
Kv: 1650 rpm/v
Voltage:7.4~11.1v (2~3s)
No load Current: 1.3A
Max Current: 22A
Max Power: 250W
Shaft Size : 3mm
Shaft Length: 28mm
Dimension: 28mm x 17mm
Thrust: 520g
Weight: 50g

People running up to 8x5 props on 3S ... 6x5.5 should work .. but I would suggest 6x6 .. or 7x5

Nigel
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