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Jun 18, 2003, 05:26 PM
Registered User

Breaking in GWS EDF-50's?


Should the small gws edf-50's be broken in before flight? If so, what's the best method?
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Jun 18, 2003, 05:58 PM
Registered User
hyperknight's Avatar
The concensus is NO. Just plug it in and run it.

hk
Jun 18, 2003, 08:35 PM
Stay thirsty my friends.
DR. JOY's Avatar
I concur.
Jun 19, 2003, 12:43 PM
Registered User
Thanks for the help guys! My edf 50's are already in place in two A-10 nacelles, raring to go!
Jun 19, 2003, 10:04 PM
Crazy Cessna Owner
Robbie d's Avatar
those little motors don't last very long anyway, the only time they should be spinning is in the air
Jun 19, 2003, 10:38 PM
Registered User
cyberfly's Avatar
Yeah, when you discover the motor has problem the next is your Air plane

Jun 19, 2003, 11:29 PM
Foam rules
Thatovalguy's Avatar
Lube the front and rear bushings with slick 50 in the pump can. You'll need to use a exacto blade and bore a hole in the motor hood to do the rear bushing, only a small hole is needed. The reason that I had with mine burning up is that the front bushing scored from the rpm heat produced by the shaft. This in turn caused the motor to seize up and burn up. The new motor I bought I slick 50'ed the heck out of it and after every session I oil it before I put it away. I have about a hour and change on it with the 5 blade prop. The other thing I noticed is does't get as hot as the old on did, its real warm but not hot. Good luck with it.
Jun 19, 2003, 11:36 PM
Registered User
While on the subject of replacing short-lived edf-50's, who has them at the best price? Also, does it matter much whether you get the 2020's instead of the 2030's?
Jun 20, 2003, 10:56 AM
Registered User

Best price on GWS EDF-50


PiolotMike:

balsaproducts.com has been advertising closeout prices on EDF-50 (2020x3) @ $9.00 and EDF 75 (3043x6) @ $11.00. I just checked their site and while there still showing the EDF-50 @ $9.00, Their out of stock with a note to "notify me when available" Not sure what their up too? I purchased 2 of each while I had the chance.

As to 2020x3, or 2030x3, I've tried both, plus 2030x5. For my application in my Learjet23, currently posted in "Jets" I found the 2020x3 gives best performance and flight time on 7 cell, 720mAh, Sanyo Nimhs. 7 to 8 min. @ 1/2 power.

So far I have 63 min. logged on a pair of EDF-50s and still running. I did initially run them in parallel on 3V alkaline for break in till battery ran down. Not sure if it helped, but I felt better. Lubricating makes sense.
Jun 21, 2003, 02:08 PM
Big gov never Works
St. Martin's Avatar
I use Marvel Mystery oil. I break in the mtrs. w/110mah 2.4v>
no load, till batt. is dead. I donot use the edf's, but in the IPS-A
gear drives w/carbon brushes, the power is better, and mtrs. last longer. I use up to 8 cells on the carbon brush mtrs after break-in. Not using full power except for launching and some of the manuvers, mostly 75% power.
Since doing the breakin & oiling, they last much longer. Infact my Guillows hellcat, initialy wore out 3 mtrs, fast. Present mtr has over 30 flights, still going strong.

Steve
Jun 21, 2003, 04:42 PM
Registered User
Oilite bushing always seem a bit happier with a bit more oil.

David