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ProModeler Scorpion Power
fpainter

Heliman

Florence, KY

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Has anyone tried this yet?
I already asked a couple of people and they did not know.
I asked the website and got no response.

Thanks in advance.

The 139T fits the hub, but you will need to drill 4 holes in it.
unfortunately it is just too big for the frame an canopy. It could be made to work, but surgery is required, motor mount needs to move, tail boom mount needs to move etc.

09-17-2016 04:22 PM
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Dan Minick

Key Veteran

Columbus, WI

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Why do you need to do this?

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

09-18-2016 02:30 AM
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fpainter

Heliman

Florence, KY

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Just curious.
Wwith a 12t pinion you get 10:1 with 121T
With a 127 T you would get 10.5:1, really not much of a difference.

09-18-2016 03:54 PM
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Dan Minick

Key Veteran

Columbus, WI

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What is your application? It would be much easier to get a lower kv motor if you want a lower headspeed

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

09-18-2016 03:58 PM
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fpainter

Heliman

Florence, KY

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I am currently running old t-rex gears 170t/12t.
this gives a 14:1 ratio. and a real nice 1800rpm with the 1175kv motor.

If I put the stock 121t/12t gears on with the 1175kv motor (the recommended set up) the head-speed would be closer to 2500rpm.

It flies the way I like it at 1800rpm.

I could just get a 800KV motor I guess.

http://www.hobbyking.com/hobbyking/...eli_880kv_.html

09-26-2016 10:52 PM
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gwright

Veteran

Champaign Il

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better motor than the one you linked, and only $20 more

http://www.hobbyking.com/hobbyking/...size_heli_.html

Gary Wright
Futaba
Flightpower
Prod manager at Hobbico

10-04-2016 06:41 PM
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AlignRC Thunder Power RC
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