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Sep 17, 2003, 10:21 AM
MSDP
Build Log

RFFS-100 2cell Ultimate bipe


Hi, all. This is my new project on 2cell modified RFFS-100(Matt's way). It has two handmade 60ohm aileron actuators. She flies very well and has lots of power. Have a good time!

Specification

Wing span : 328mm(12.9")
AUW : 56g(with 2cell 210mAh Li-Poly)
RX : 2cell modified RFFS-100
Actuator : Handmade 60ohm x 3(two for aileron, one for elevator)
Motor : GWS B2C 6.2:1 gearing
Prop : GWS EP7060

short flying video - loop, roll and etc.(1 min 14 sec, 2.5MB)

long flying video - roll and etc.(3 min 57 sec, 6.7MB)
Last edited by jjkwang; Feb 03, 2006 at 06:18 AM.
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Sep 17, 2003, 10:23 AM
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Sep 17, 2003, 10:36 AM
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Sep 17, 2003, 11:50 AM
What Canary?
KeithK's Avatar
JJKWANG,

Very nice work. Do you know what current the motor is pulling?

Thanks,
Keith
Sep 17, 2003, 12:22 PM
Gravity is a harsh mistress.
Tim Wolff's Avatar
I'd also like to know how suitable that GWS motor is for RFFS airframes.

Nice job BTW.
Sep 17, 2003, 03:19 PM
in persuit of low wing loading
Gordon Johnson's Avatar
JJ,
That is very nice. I think you have the 2-cell RFFS combination down very well now. You have another winner here.

Tiberius,
I think the GWS motor he's using is essentially a N20, which is about right for that weight and size plane on two cells.

Gordon
Sep 17, 2003, 06:00 PM
MSDP
Thank you for kind words and interest. Keith and Tiberius, I hope below link helps you(You can find the B2C data table on bottom of the page). The GWS B2C motor is similar to the hi-volt N20, but it has carbon brush.

GWS LPS B2C Motor Data

Thanks,
Jae-Kwang
Last edited by jjkwang; Sep 17, 2003 at 06:56 PM.
Sep 17, 2003, 07:40 PM
Gravity is a harsh mistress.
Tim Wolff's Avatar
Thanks guys. The M20, N20, HV, LV, UHV combinations still confuse me. The B2C would only be suitable for 2 cell applications. The RLC motor looks ok for 1 cell use, but that amp draw is too high for the RFFS, right?
Sep 17, 2003, 09:06 PM
Who Says Penguins Can't Fly?
aeropenguin's Avatar
LV=low voltage
HV=high voltage
UHV = never heard of this - maybe ultra high voltage?
N20 = M20 lookalike, a little less powerful as I understand.
M20 = that's what the KP00 uses, that's what an E-charger motor essentially is (slightly different windings)
M20-HV is the most powerful of them all, and it can be run on one or two cells.
-Michael
Sep 17, 2003, 09:35 PM
MSDP
Hello, Michael. How have you been getting along? Thanks for advice.

Tiberius, Yes, the RLC motor draws too much amps. This motor is not suitable for the RFFS-100.

Jae-Kwang
Last edited by jjkwang; Sep 23, 2003 at 11:13 AM.


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