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Home✈️Aircraft🚁Helicoptere-AlignT-REX 450 › Sudden power loss?
12-18-2011 06:06 AM  9 years ago
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Nicros

rrApprentice

San Diego, CA

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Sudden power loss?
Was just hovering my TRex 450 SE v2 about 10 feet off the ground and the power just cut out... heli was about 20 feet away. It seemed to be kind of autorotating to the ground when the power slammed back on at about 2 feet... I lost it and crashed

Fortunately no major damage that I can tell, just some new blades, maybe a main shaft.

But anyone have any ideas what to look for? Lipo had about 5 cycles on it and was at 60% when the power cut. Felt like something electrical rather than mechanical.

Suggestions?
Ever notice how crash rhymes with cash?
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12-18-2011 06:37 AM  9 years ago
1004ron

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Louisville, KY - USA

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What are your settings in the ESC, particularly the voltage level at which it will start reducing power (some of them pulse the power), and is it set for soft cut-off ?Goblin 700 AR7200BX / T550E V2 AR7200BX / 450 Pro FBL, GT5
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12-18-2011 07:06 AM  9 years ago
Nicros

rrApprentice

San Diego, CA

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Settings in the esc... I converted the bird from spektrum to futaba about 10 flights ago, so just had to set it up again- but sadly that doesn't mean I remember the details

But I do remember it was the standard recommended settings, and with those 10 flights I definitely drained the lipos down to 18-20%...

I think it is set for soft cut off as well...
Ever notice how crash rhymes with cash?
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12-21-2011 12:39 AM  9 years ago
tony521

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Jax, florida

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trex 450
check all your solder joints.
Tony
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12-21-2011 02:32 AM  9 years ago
rocco.sj

rrVeteran

California,

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After you turn on your ESC it should be followed by
1 beep,then 2,1,2, and last 3.

https://rc.runryder.com/t300358p1/

or try going to trex tuning.
http://www.trextuning.com/alignmanual.php
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Home✈️Aircraft🚁Helicoptere-AlignT-REX 450 › Sudden power loss?
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