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Need help with a Blade 400 - 10/20/2012 7:06 PM   
Don Reger


 

Posts: 35
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Joined: 8/12/2003
Last Login: 5/24/2013
From: Lincoln, NE, USA
Status: offline 		When I go to throttle up it comes off the ground just a little then cuts out.

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RE: Need help with a Blade 400 - 10/21/2012 3:15 AM   
JPEE



Posts: 3178
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Joined: 3/14/2008
Last Login: 5/21/2013
From: Heli Heaven, CA, USA
Status: offline 		Hello Don,

Your description is very vague. I don't know if this 400 has flown well in the past? or you just built or bought it and this is your maiden? How much piloting and RC experience you have. Those would be helpful for us at this end in helping you.

Lets assume your heli flew before this problem cropped up. A loose wire, or what is called and "cold soldering joint" will produce your condition because the higher the RPM vibration as the motor revs up will wiggle any loose connections on the ESC to the motor. They will come apart momentarily causing the motor to shut down. It could be the connection from the ESC to your receiver too, or the receiver itself. If that wire lead from receiver to the ESC is not firmly plugged in the signal from your radio to the ESC would be lost again resulting in a shut down condition.

Do this next time, when the heli comes down after the motor shuts off see if all of the other servos are still active. If so and they work then the BEC of the ESC is good. Then you might look at the ESC itself as it might be the culprit and it might be dying. There have been many problems with the 400 35 amp ESC's as they were maxed out during hard flying. A lot of the guys moved up to 40 amp ESC's for that reason. Follow some of these tips and see where you go. Just check every connection on the heli. Feel free to PM me if you need more help.

Good Luck JPEE

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Trex 700e fbl V2, Vbar, Trex 500 FBL -Vbar, TREX 450 Pro, Quad 450 Naza-GPS, Hexa 550 Naza, Bixler Glider

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RE: Need help with a Blade 400 - 10/21/2012 2:20 PM   
Don Reger


 

Posts: 35
Score: 100
Joined: 8/12/2003
Last Login: 5/24/2013
From: Lincoln, NE, USA
Status: offline 		Thanks for the help, I will try some of these things today.

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RE: Need help with a Blade 400 - 10/21/2012 11:51 PM   
Don Reger


 

Posts: 35
Score: 100
Joined: 8/12/2003
Last Login: 5/24/2013
From: Lincoln, NE, USA
Status: offline 		JPEE when I ran it today the ESC would shout down and blink?

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RE: Need help with a Blade 400 - 10/22/2012 2:52 AM   
JPEE



Posts: 3178
Score: 115
Joined: 3/14/2008
Last Login: 5/21/2013
From: Heli Heaven, CA, USA
Status: offline 		Hello Don,

If you go on the web and search "blade 400 ESC" you will see that there is an inherent problem with the ESCs and many guys are having the same problem you have and they give you some remedies!

http://geekozoid.blogspot.com/2009/03/blade-400-esc-cut-off-too-early.html?m=1

http://m.rc.runryder.com/helicopter/t594405p1/

Hope this helps you, JPEE

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Trex 700e fbl V2, Vbar, Trex 500 FBL -Vbar, TREX 450 Pro, Quad 450 Naza-GPS, Hexa 550 Naza, Bixler Glider

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RE: Need help with a Blade 400 - 10/22/2012 10:40 AM   
Don Reger


 

Posts: 35
Score: 100
Joined: 8/12/2003
Last Login: 5/24/2013
From: Lincoln, NE, USA
Status: offline 		Thanks again for the help.

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RE: Need help with a Blade 400 - 10/23/2012 1:47 AM   
essyou35


 

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From: none, USA
Status: offline 		Don this is Joey if you still have problems let me know, I can get it fixed up for you. I've been flying (and cussing) a blade 400 for about 4 years now. I can take them apart with my eyes closed.
Your problem sounds like a low voltage cut off. Make sure you have a 3s lipo, the esc is set to 3s cutoff. If that is ok then the lipo is bad or the head is binding up and causing the amps to surge.

I have a spare stock ESC around here somewhere but just about any esc is better than the stock one.

Joey

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