Banana Hobby/J-Power 50mm A-10 EDF Failures - RC Groups
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Mar 20, 2011, 01:28 PM
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Ducati0749's Avatar

Banana Hobby/J-Power 50mm A-10 EDF Failures

Well everyone, I guess you can chalk another one up to crappy Chinese quality control. I have purchased two of these A-10s and in both instances, I have had one of the fan units completely explode. The first one occurred after only the second flight and this most recent fan failure occurred on the forth flight during take off. Thank goodness it did not happen in the air or cause harm to anyone on the ground or property damage (other than the plane careening into a curb). The plane is salvageable, but the nose gear got pretty torqued and one of the wing landing gear was pulled out of the wing. There was no warning at all either, as my previous flights the units sounded fine and I inspected them after each flight. The fan unit simply went with no warning. Pretty scary.

Ironically, I was in the process of ordering one of the Wicked 50mm set-ups and was going to mod this little bird, but in the meantime, I wanted to fly it stock. I am pretty anal and did bench test and did some break-in of the fan units, especially after the first failure which I simply had chalked up to bad luck. Well now I know that it was not a fluke. Clearly there is an inherent issue with the fan units.

Call me a gluten for punishment, but I already ordered a 3rd A-10, because I just love the way that this little bird flys so much. But trust me, it will not see a second of flight time until I get my Wicked units installed.

So Pete, if you are reading this, I think that you should give J-Power a heads up. I am not going to bother doing the warranty or return gymnastics as its simply more trouble than its worth, but you should relay these critical failures to J-Power as I would hate to see someone injured in the event that this occurs at an inopportune time. I can guarantee I am not the only one to have this experience. Two planes and two fan failures...I am batting 1000!

Oh and Pete, I am a huge supporter of Banana hobby and have bought a ton of stuff from you guys and will keep coming back as you have always stood by your products in my experiences, so don't think this is a knock on your company, as I realize that when dealing with Chinese products you get what you pay for (i.e. zero quality control).

Its all good, on to the next one...

Last edited by Ducati0749; Mar 20, 2011 at 01:36 PM.
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Apr 07, 2011, 03:30 PM
Registered User
Did this occur using a 3s or 4s?
Jul 13, 2011, 03:13 AM
Has nowhere to store his Jets!
Originally Posted by protus
Did this occur using a 3s or 4s?
Ummm Any Answer would be nice..... Please!!
I'm about to pull the card out and purchase this little beasty ( I have it's big brother the 49" version) and only going to run 3S.
Would be nice to know in advance if the failures are 3S or 4S related.

Jul 13, 2011, 08:02 AM
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Scrf1's Avatar
Mine clunked out less than a min. into my first flight.(3s batt.) Being a noob to edf's I ran it up a few times, looked for scuffing on the shrould and that was it. Well it prob. wasn't balanced. Lucky for me my Mig's glide is good and I brought her in. Changed to a 6 blade. Think I'm gonna get another one of this series. Learning is as almost as much fun as flying.
Jul 13, 2011, 08:19 AM
Pointy end at the front.
benjo's Avatar
On a more humorous tone. When the Freewing Su-34 came out (2 years ago??) I crashed it pretty hard on its belly with no gear, the intakes took all the impact and you shoulda seen the fan blades spit out of the back it looked spectacular.
Oct 27, 2011, 06:25 PM
Ozzy O
I have this one and it's doing the same thing to me!! Mine is on 3S. I've had the same side explode 3 times now... I ordered the fan for the little F86, it's the same one that comes in this A10. Motors feel the same, like tight and such but for some reason the same side (right side) keeps blowing up...

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