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Old 02-15-2013, 06:54 PM   #1 (permalink)
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Third flight of the day, things were going great. I got hit by the dreaded YGE LVC syndrome. I'll post the vid shortly.

The short end of the story, I finished my flip in TH, got her legs under her and gave full pos pitch to bleed the HS off as she dropped from 5' or so. Landed rough on the right side skid and the broke clean off at the mounts. It sounds bad on the vid, but going through it so far, I think my skids are the only complete loss. The blades have a very slight ding at the roots, the canopy has seen better days (not many though!) and I broke one break-away tab.

This thing is a tank!
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Old 02-15-2013, 07:22 PM   #2 (permalink)
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Curious to see that video. It doesn't look to bad like you said
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Old 02-15-2013, 07:23 PM   #3 (permalink)
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Sorry to hear about your crash. I'm surprised more didn't break from a dead fall, though. I'd pull the boom and make sure it's not slightly tweaked. Also, check the spindle shaft--it might be slightly tweaked, too. If this were me, I'd put a full setup on the helicopter after repairs are complete.

Don't get me wrong, it's great the helicopter came through as it did, I'm just suggesting things for safety. You're right, though...it is built like a tank! We love that!

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Old 02-15-2013, 07:26 PM   #4 (permalink)
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Not sure what that syndrome is but I'd like to know more about it. Glad there wasn't more damage!

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Old 02-15-2013, 07:35 PM   #5 (permalink)
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Doesn't look bad. I wish all I did was break my skids.
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Old 02-15-2013, 07:42 PM   #6 (permalink)
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Here's the vid guys!

[ame]http://youtu.be/JCX9qnPSMXg[/ame]

I just spooled her up on the bench, smooth as silk. I'll be double checking the spindle though. Main shaft was perfect. No vibes in the tail or boom.

Love it!
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Old 02-15-2013, 07:48 PM   #7 (permalink)
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Ahhh Low Voltage Cutoff... Makes sense now.

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Old 02-15-2013, 08:03 PM   #8 (permalink)
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Yeah, sorry Life. The YGE can be too absolute on its LVC detection. I wasn't too close to the end, but I was pulling too much I guess. I just lowered it to 2.9 to be safe. 5 minute flights are leaving me with a resting voltage at 3.74, so I'm comfortable with the time.
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Old 02-15-2013, 08:12 PM   #9 (permalink)
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Okay, good to know. Thanks.

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Old 02-15-2013, 09:13 PM   #10 (permalink)
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As a first time owner of both a Rush and a YGE esc, this scares the crap out of me. Can't you program a different setting for the LVC?
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Old 02-15-2013, 09:28 PM   #11 (permalink)
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WTH? Did the LVC cause the servos to kick like that? At least that's what it sounded and looked like. Yikes! Glad it was low to the ground.
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Old 02-15-2013, 09:40 PM   #12 (permalink)
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The ESC gives you no indication before LVC?

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Old 02-16-2013, 10:25 AM   #13 (permalink)
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ouch, not using a soft cut-off?
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Old 02-16-2013, 12:01 PM   #14 (permalink)
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I had the YGE set to 3.1 and slow-down. After the crash I reviewed all settings. It clearly didn't slow down. As soon as the power dropped, I was in TH attempting my best save.

I have now set LVC to 2.9v and it remains at slow-down.

I've been using YGE for an entire year now, and this is only the second time I've seen this. My Prôtos did it to me once, almost exactly the same. Inverted punch out, power loss. I was able to save it, and after checking that things worked, flipped right back out of TH and flew the rest of the flight.

Bob, I don't follow what you are referring to with the servos? I had complete control during the power failure and immediately after the crash.

Personally, this hasn't shaken my confidence in my power train. If anything, I'm thinking this might have been caused by my batteries not completely being broken in. They only have 7 cycles. I recommend YGE to anyone, and two of my friends purchased the 160HV-K as well. We all are resetting LVC though.

I wish I could get skids by today. Lol. I'd be back in the air tomorrow!
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Old 02-16-2013, 12:54 PM   #15 (permalink)
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Quote:
Originally Posted by th0rg0d View Post
I had the YGE set to 3.1 and slow-down. After the crash I reviewed all settings. It clearly didn't slow down. As soon as the power dropped, I was in TH attempting my best save.

I have now set LVC to 2.9v and it remains at slow-down.

I've been using YGE for an entire year now, and this is only the second time I've seen this. My Pr˘tos did it to me once, almost exactly the same. Inverted punch out, power loss. I was able to save it, and after checking that things worked, flipped right back out of TH and flew the rest of the flight.

Bob, I don't follow what you are referring to with the servos? I had complete control during the power failure and immediately after the crash.

Personally, this hasn't shaken my confidence in my power train. If anything, I'm thinking this might have been caused by my batteries not completely being broken in. They only have 7 cycles. I recommend YGE to anyone, and two of my friends purchased the 160HV-K as well. We all are resetting LVC though.

I wish I could get skids by today. Lol. I'd be back in the air tomorrow!
Dang, sorry for your crash, but lucky about the damage! Listen, in a pinch, I used Trex 700 skids until the AleeS ones came in. They will fit but you have to dremmel the holes a little so they line up, but they work fine... just a thought if you want to get back in the air.
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Old 02-16-2013, 03:10 PM   #16 (permalink)
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Thanks for the info! I'll have to check around locally. The closest Align shop just closed their doors a month or so ago.
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Old 02-16-2013, 04:14 PM   #17 (permalink)
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Thanks for the info! I'll have to check around locally. The closest Align shop just closed their doors a month or so ago.

if you have any issue finding any, i have some and i will put them in the mail asap for you. let me know.
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Old 02-16-2013, 05:50 PM   #18 (permalink)
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I have spare ALeeS skids, too. If you need them, let us know!

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Old 02-16-2013, 08:03 PM   #19 (permalink)
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Thanks Scott and dodge for the offer! I ordered some from RRE Models, RH was out of stock. It looks like free ground shipping is their only offer, but hopefully they will come soon.
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Old 02-16-2013, 08:48 PM   #20 (permalink)
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We're here to help you, Thor! Oh... I liked the comments at the end. I think I would have let more than that fly! LOL!

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