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Old 04-13-2012, 12:59 AM   #1
Dylan Hudock
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Default 325 blade root question

Yesterday I crashed my 450 onto the flying field runway that is made out of tarp over sand. The blades (Align 325d pros) look fine except that as they hit the dirt one blade folded back into the blade grip and made a small indent in the blade. There is also tiny hair line crack going in about 1/8 of an inch. The crack is only on the the top of the blade. I have flowed thin CA into the indent/crack. Do any of you guys think it is still ok to fly with the blades?

Dylan
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Old 04-13-2012, 03:49 PM   #2
DT75
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I guess the cracked blade is CA'd, so you don't need to buy a new set (In essence, save money).

Here's how I see it :

If the repaired blade suddenly let's go midflight, your heli will shake itself to bits in an instant + chrash damage when it hits the ground. Now you face a serious rebuild, and on top of that you'll still have to buy a new set of blades.
A very expensive set of 450 blades...
Not to speak of the danger to yourself and others, when a thin strip of CF gets flung in your face at 3000rpm...

Some light tip damage can be accepted, but not root damaged. A safety issue + a set of new blades are way cheaper than a potential rebuild, in any case...
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Old 04-13-2012, 06:18 PM   #3
Dylan Hudock
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Thanks for your response! Thats what I was thinking, I just wanted to be sure.
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Old 04-13-2012, 06:41 PM   #4
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Old 05-09-2012, 01:24 AM   #5
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Id say the nick is no problem, but I havent seen cracks coming from it in my blades. If I saw a crack coming from the nick id trash it, itll probably flex and ca cant hold flexing repeatedly.
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