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HomeAircraftHelicopterHelicopter Main Discussion › internal blade damage?
04-30-2010 03:23 AM  8 years agoPost 1
fflier9

rrApprentice

Wauwatosa, WI USA

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I recently had a boom strike on my Raptor 50 on a bouncy auto. The blades are Align 600d's (not pro's). All that broke was a link in the head and the boom, of course.
Anyway, now when I flex the blade up and down with my hands, the blade that hit the boom has a faint crunching noise coming from it. It's kind of like gently squeezing a box of cereal. There is no visible damage. Could there be hairline cracks on it, or is the internal weight loose or something? I replaced it with another set and haven't flown it since, but I'm wondering if it's usable.
What do you think?

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04-30-2010 03:26 AM  8 years agoPost 2
rotormonkey

rrKey Veteran

Ottawa, ON - Canada

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Personally I wouldn't. On anything bigger than 325s, I don't fly any blade that's stopped for any reason other than air friction.

If it can't hover, it ain't worth flying.

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04-30-2010 03:26 AM  8 years agoPost 3
gordart

rrApprentice

Lansdale, PA USA

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If that blade lets loose at any decent head speed, you will wish you had trashed it.
I wouldn't use it.

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04-30-2010 03:33 AM  8 years agoPost 4
RaptorMan23

rrKey Veteran

Sioux City, IA

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Toss it!!

If you only have to bend over once to pick it up it's a good landing.

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04-30-2010 10:12 AM  8 years agoPost 5
Hamo

rrVeteran

Ireland

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the blade that hit the boom has a faint crunching noise coming from it
The question is, did this blade have this noise before it hit the boom
or only since. If there is no visible external damage, it's highly unlikely there is internal damage.
Hamo

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04-30-2010 11:05 AM  8 years agoPost 6
AWittleWabbit

rrElite Veteran

O.C., CA

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That's probably the carbon outside detaching from the core or from itself at or near the trailing edge. You'll probably notice it more if you lightly twist the blade. I agree with rotormonkey. If it were <325mm Id consider using it too. Don't chance it on 600s.

Heli-itis sufferer.

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