Could this be the mysterious firebird motor?!? - RC Groups
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Nov 10, 2001, 11:37 PM
Senior Member
Paul Penney's Avatar

Could this be the mysterious firebird motor?!?

hey all,

I was just down at the electronics store and saw a box of these motors laying around, so I bought a couple. These are almost ideniticle to the GWS motor only they are flat on one side. Tests indicate that They give the same performance as a GWS motor. After opening them up, what a surprize, CARBON BRUSHES!!! these motors can handle eight cells easily!!!!!! I strapped one to a GWS DX-A gearbox and have been flying it every since. only cost me.... drum roll..... 2 bucks canadian!!!!!!! a little code on teh motor says: MK419A taiwan

Very nice

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Nov 11, 2001, 06:33 AM
Registered User
Sounds much like a Mabuchi 050. I've also had great success with these motors.

Nov 11, 2001, 06:37 AM
Registered User
Bleriot's Avatar
Hi Paul. Yep, you now own the legendary Mabuchi 050, which has found a home in quite a few drive systems, both homemade and commercially made. Not quite the zip of the GWS IPS motor but able to handle a bit more volts. There are very many variations in windings with this motor, I have some MK 412A, which don't seem to have the punch I need for my TM even on 3 Liths or 8 nicads, so I'm thinking that I have maybe a 6V version. It would be helpful to get the Mabuchi motor code deciphered so as to discover which MK series would be best suited to replace the IPS. I have heard that these motors were used primarily in cameras, but not confirmed. And sure, I have fried quite a few in experiments! Mine cost 69 cents each! Best Regards
Nov 11, 2001, 09:26 AM
Senior Member
Paul Penney's Avatar
Sweet!!!! but bad news for me, someone else discovered them at the electronics store and bought them all

right now I am building an SE5A for it out of foam and am almost done. next test- 10 cells in a pattern plane with GWS retracts

I guess I just got lucky on the winds
Nov 11, 2001, 09:38 AM
Senior Member
Paul Penney's Avatar
I just stumbled onto this motor on the mabuchi website

code says RF-M50SC The M50 looks like mabuchi 050

weight is 8.6 grams. looks interesting
Nov 11, 2001, 11:08 AM
Registered User
The Mabuchi 050 is flattened on two sides (see link below), not perfectly round like the M50 pictured in your link. The Mabuchi 050 in my Puma 050N drive is a MK428A. At 8.6 grams, the M50 sounds awfully light to have significant power. The Mabuchi 050 and GWS IPS motors both weigh more in the 15-20 gram range. By the way, the new, improved Firebird II is said to come with a different motor than the original Firebird. Whether it's actually better or not remains to be seen.
Last edited by Dave Hederich; Nov 11, 2001 at 11:12 AM.
Nov 11, 2001, 11:34 AM
registered user
DNA's Avatar
The Goldmine G9330 mabuchi 050 is an MJ413A and turns
15,300 rpm on 8 nicads w 3x2 prop. While the black GWS
with wet magnets turns 15,600 rpm on 6 nicads. Both draw

Another contestant for the mysterious Firebird motor might be
the motor used in the Mini Max power system. It looks
identical to the Johnson 250 but when you look at the endbell
it says 'Mabuchi'. Flyers have over 100 flights on their mini-max
planes using 7 nimhs.
Last edited by DNA; Nov 11, 2001 at 12:01 PM.