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E-flite . Fast Lad Performance . Ace Hobby

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e-Minicopter Joker > Engine dropouts
 
 
Stepino
Heliman
Location: Prague, Czech Rep.

My Posts This: Topic  Forum
Hi
we are encountering occasional short engine dropouts on out MJ2 camera ship.

For illustration, see this onboard video please:
http://www.helicam.cz/cz/engine_dropouts.html

Motor is Actro 32-4 and ESC is Actronic 120.

It looks like signal dropout and failsave reaction, but we have disabled failsave for testing (all channels set to hold) and it still hapens.
Tx/Rx is Duplex 2,4GHz system with builtin diagnostics - indicates no lost frames, no problem with transmision.

We are suspecting static electricity and used antistatic spray on tail drive belt, but no improvement.

In next step, we want to try Eagletree logger to check if the problem is in reciever or in ESC.


Have you ever experience something like this?
I will be very happy for any advice or hint...


Thank you
Stepan
11-03-2009 10:18 PM
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Seablade
Key Veteran
Location: floating around

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Do these drop-outs occur in flight or during initial spool up?

"Vini, Vidi, Velcro"
11-04-2009 06:10 AM
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Stepino
Heliman
Location: Prague, Czech Rep.

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Only in flight. We have tried to simulate it on ground but it has never occured.
11-04-2009 06:28 AM
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Seablade
Key Veteran
Location: floating around

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Have you asked Actronic about this?

"Vini, Vidi, Velcro"
11-04-2009 06:45 AM
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Stepino
Heliman
Location: Prague, Czech Rep.

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Not yet, I will try it today.
11-04-2009 07:17 AM
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nooobs
Elite Veteran
Location: Toronto, Canada

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I would guess it's your ESC. Try a PowerJazz.
11-04-2009 07:32 AM
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Esprit Model . Thunder Power RC . Mikado Modellhubschrauber

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e-Minicopter Joker > Engine dropouts
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