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Old Jun 18, 2003, 06:26 PM
PilotMike is offline
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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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Old Jun 18, 2003, 06:58 PM
hyperknight is offline
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The concensus is NO. Just plug it in and run it.

hk
Old Jun 18, 2003, 09:35 PM
DR. JOY is offline
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Stay thirsty my friends.
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I concur.
Old Jun 19, 2003, 01:43 PM
PilotMike is offline
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Thanks for the help guys! My edf 50's are already in place in two A-10 nacelles, raring to go!
Old Jun 19, 2003, 11:04 PM
Robbie d is offline
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those little motors don't last very long anyway, the only time they should be spinning is in the air
Old Jun 19, 2003, 11:38 PM
cyberfly is offline
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Yeah, when you discover the motor has problem the next is your Air plane

Old Jun 20, 2003, 12:29 AM
Thatovalguy is offline
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Foam rules
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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.
Old Jun 20, 2003, 12:36 AM
PilotMike is offline
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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?
Old Jun 20, 2003, 11:56 AM
David A Ramsey is offline
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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.
Old Jun 21, 2003, 03:08 PM
St. Martin is offline
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Big gov never Works
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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
Old Jun 21, 2003, 05:42 PM
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Oilite bushing always seem a bit happier with a bit more oil.

David


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