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View Poll Results: Which motor?
2 Gram 1 11.11%
3.1 gram 6 66.67%
lower kv but more expensive 3.1 gram 2 22.22%
Voters: 9. You may not vote on this poll

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Old Jan 19, 2011, 09:01 PM
Airplane Dope
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USA, WI, Rio
Joined Nov 2009
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ParkZone UltraMicro T-28 Brushless Conversion

I'm going to convert my PZ UM T-28 to Brushless. I'm going to get the motor and ESC from HobbyKing. There are 3 motors that I'm considering: A cheap Hextronic 2gram motor; a kinda expensive 3 gram motor; and another even more expensive lower Kv 3 gram Motor(Both 3 grams are AP03's.). Maybe even the AP05? Any comments welcome.
EDIT: I don't have much money to use on it, so I kinda want to keep it cheap. What do I need: More torque or more speed? (lower or higher KV)
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Old Jan 30, 2011, 11:03 PM
Foam Av8r
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In Teh Garage (Rossville, GA. USA)
Joined Sep 2008
3,351 Posts
Lower KV = more torque but slower top end speed higher KV = less torque but faster top end speeds.
another really good source for cheap motors is WWW.RCTIMER.COM
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Old Jan 31, 2011, 09:42 AM
Airplane Dope
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USA, WI, Rio
Joined Nov 2009
329 Posts
Quote:
Originally Posted by RogueTitan View Post
Lower KV = more torque but slower top end speed higher KV = less torque but faster top end speeds.
another really good source for cheap motors is WWW.RCTIMER.COM
Thanks! So which one should I get?
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Old Feb 06, 2011, 07:36 PM
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United States, SC, West Columbia
Joined Oct 2009
1,441 Posts
The 2 gram motor looks a bit small. I would go with the "AP05" or "AP03", along with the turnigy 3 gram BL ESC.

Most people use those for Ultra-Micro conversions, and have great results.
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Old Feb 06, 2011, 10:47 PM
Airplane Dope
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USA, WI, Rio
Joined Nov 2009
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Quote:
Originally Posted by microflitedude View Post
The 2 gram motor looks a bit small. I would go with the "AP05" or "AP03", along with the turnigy 3 gram BL ESC.

Most people use those for Ultra-Micro conversions, and have great results.
Yeah, the AP03 is 3.1 grams, and that's what I'm thinking of. Should I get lower or higher KV?
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Old May 31, 2011, 03:49 AM
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Australia, QLD
Joined Jan 2010
31 Posts
T-28 Brushless upgrade

I upgraded my T-28 for $38.37 and am very happy with it. The video has all the parts and pictures, & I just used the stock propeller.
Parkzone Ultra Micro T 28 brushless RC Plane conversion for $38.37 (3 min 4 sec)
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Old May 31, 2011, 08:47 AM
Airplane Dope
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USA, WI, Rio
Joined Nov 2009
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Quote:
Originally Posted by Optic-Flare View Post
I upgraded my T-28 for $38.37 and am very happy with it. The video has all the parts and pictures, & I just used the stock propeller. http://www.youtube.com/watch?v=3ZvzvhjbTBY
Sweet! Right now I have a UM Scratchbuild because my Trojan quit working, so I used the guts. But my RX board isn't working, and a friend gave me some electronics so I bought an RX and battery and I am starting a Build Log here: http://www.rcgroups.com/forums/showthread.php?t=1448176
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Old Apr 10, 2013, 09:38 PM
Registered User
Joined Apr 2013
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brushless conversion um t28

Quote:
Originally Posted by AddictedToRC View Post
I'm going to convert my PZ UM T-28 to Brushless. I'm going to get the motor and ESC from HobbyKing. There are 3 motors that I'm considering: A cheap Hextronic 2gram motor; a kinda expensive 3 gram motor; and another even more expensive lower Kv 3 gram Motor(Both 3 grams are AP03's.). Maybe even the AP05? Any comments welcome.
EDIT: I don't have much money to use on it, so I kinda want to keep it cheap. What do I need: More torque or more speed? (lower or higher KV)

I done the brushless conversion for um t-28. Every thing i used came form horizonhobby for around $65. Alot faster an still just as stable.

Part #s
BL 180 brushless outrunner 2500kv
EFLUM180BL2

Spinner
EFLU4851

Prop Adapter
EFLU4067

Eflight 5amp pro brushless ESC
EFLA1005

Motor mount/firewall came from umx beast3D that was crashed. Every thing turned out nice an cog was great. The motor mounted were stock motor was, I had to remove the front landing gear an mount for esc. Im still useing the ar6400 that came in my um t28 so i still have rudder an elavtor controls. I'll post pics shortley.
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Old May 31, 2013, 05:32 AM
ks5p3r
United States, CA, Fullerton
Joined May 2013
330 Posts
total nube here,can you give me more details on the t28 brushless conversion.
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