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Old Feb 03, 2015, 07:15 PM
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Phoenix, Arizona
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Question
Apprentice SAFE System different Receiver

So my Receiver for the SAFE system took a dump so I swapped it out with a Spektrum AR8000 which I got for free when I bought the TX. I could not control the plane hardly at all. So I swapped out all the servos with regular EFlight servos and now it fly's great.
My question is are the servos part of the SAFE system?
Are the stock Apprentice servos compatible with a standard receiver?
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Old Feb 03, 2015, 08:25 PM
mcnowhere is offline
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United States, OR, McMinnville
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Did you use the same model in the Tx or a new model?
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Old Feb 03, 2015, 08:32 PM
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I run a different RX in my Apprentice and I do not believe the servos have anything to do with the SAFE system. I have had at least 25 flights like this with no problems...
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Old Feb 03, 2015, 09:00 PM
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I'm using a DX8. I was using the stock DX5e until I swapped out the receiver. The problem was when I tried to turn using the ailerons it would stall and spin towards the ground every time. Throttling up while flying would flip it upside down with no stick movement. all control surfaces were centered and checked before flying and seemed to work correctly on the bench.
So my thought was it's the servos.??? So I swapped all of them out and with no radio changes it flew absolutely perfect. I'm just trying to figure out why it wouldn't fly with a new RX and stock servos. The plane has only been flown several times with no problems.
Oh well, it fly's great now and the whole SAFE system is in the trash.
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Old Feb 05, 2015, 06:09 PM
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The servos should be normal servos. Maybe you had one that was damaged?
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Old Feb 05, 2015, 06:30 PM
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United States, CA, Twentynine Palms
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The servos are not part of SAFE. SAFE is only in the RX.

Sounds like maybe the battery shifted and the CG was off?
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Old Feb 05, 2015, 06:34 PM
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Canada, ON, Toronto
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the servos in the apprentice are digital eflites and have nothing to do with
the rx, they should work fine in a non safe or safe plane
BUT...these some people including myself have had problems with them..in fact I junked them for Hitecs. Your problem could have been a bad servo? Nothing to do with safe.
or maybe the outputs from the new rx are different from the safe system..so if you didn't change anything on the TX..the channels would be reversed.I would test it again on the bench and take a close look
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