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Home✈️Aircraft🚁HelicopterAlignT-REX 700N › Warning about Align Tail Blades (UPDATE)
08-18-2008 06:22 PM  12 years ago
Toolman

rrApprentice

London

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if it backs out to one side or the other than there is not as much support/surface area in contact with the bolt.
I understand what you are saying, but how much could it back out.
Say it came half out (Idon't know if this is possible) that that would concentrate the load over half the blade thickness. As I was saying don't you think the blade would have that Factor of safety of at least 2x??

The picture in the first post seems to me to show rather dry fibres inthe hole.

Tim.
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08-18-2008 06:33 PM  12 years ago
Eury

rrProfessor

Dover NH USA

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💎Sustaining Member
It doesn't happen until the bushing comes out at least part way judging by how mine failed. It has the ability to come about 3/4 of the way out.

And no, knowing some of the total crap that Align puts out, I seriously doubt that anything with the Align name on it has a 2x safety margin.
Nick Crego

Citizen #0168
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08-19-2008 12:57 AM  12 years ago
4cyclic

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Montreal, Can. and northern Vermont

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Don't rush to buy other tail blades, as Align crap ain't any more crappy than the Rotor Tech tail blades I have been using for the last 400+ flights on my 600N. The bushing does loosen after a while, even after ca has been applied to the entire surface of the bushing.

Probably JBweld is better if you make sure it stays on the bushing surface when you insert it in the blade.

You do need to check the bushings on a regular basis regardless of the mfg.

My 2 cents.
Life is meaningful flying helis.
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08-19-2008 01:02 AM  12 years ago
mjy1288

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Mt Airy, MD USA

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The picture in the first post seems to me to show rather dry fibres inthe hole.
I cut the blade apart and it has a light coat of carbon over a very porous fiberglass mesh. I believe I got a faulty blade because the other one was fine when I cut it apart, Nice and solid.

I think if anybody is going to use them, the bushings should be CA'd into the blade root. For me...... I'm done with Align tail blades
"Big" Mike
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08-21-2008 02:59 AM  12 years ago
mjy1288

rrApprentice

Mt Airy, MD USA

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I spoke to Ed at GrandRC today about the Tail blade failure on the Trex 700 Kit I purchased from him, and Ed went out of his way to help with this situation.

It's nice to know that there are companies like GrandRC out there that stand behind what they sell

Kudos to GrandRC
"Big" Mike
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08-21-2008 03:29 AM  12 years ago
HeliSmith

rrVeteran

Chico, CA

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If you lose your tail always hit thold and auto this should kill the piro. If it happens in an odd position you are pretty screwed.

If you are going to set the bushing use Epoxy 30 minute is recommended. I have had to do this with cheap CF main blades for my 450 before.
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08-21-2008 06:41 AM  12 years ago
mjy1288

rrApprentice

Mt Airy, MD USA

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If you lose your tail always hit thold and auto this should kill the piro. If it happens in an odd position you are pretty screwed.
I was only about 30 feet up when it let go, I did manage to hit T-Hold, but not quick enough to save it
"Big" Mike
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08-21-2008 07:35 AM  12 years ago
louk05

rrKey Veteran

Flying in BelAir Maryland

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I have been practiceing autos my self and good thing i was because i just put the new align hp motor in and i cant get it to run right yet. i am going to replace my clutch and fan to see if this helps as i may have bent them trying to get them off my szh. It seems to run real ruff and tail is jumpping a foot to the left only. and in doing so i leaned her out to much and motor got hot a stopped about 100-150 up easy and i got scared at 1st but then i just relaxed and put her at about -3 4 deg and floted her down. no problem and my best auto yet.

Any ways I saw this post and decided to check my tail blades and sure enough one copper bushing was popping out. the other one was fine. So i CA glued her back in and 5 more flights no problem. Still cant get motor to run right. i even put the o.s shim with a 2 on it. i am guessing that is the 004 mm one and it still did not help. iam running a hatori sb18 pipe and cool power 30% and both needles are 1.5 turns out from closed. I have evdn tried same settings as my szh and not even close. I even tried 4 turns in and out and either to hot or to cold. cant get it right. any help pleasem And do check them tail blades.
Fly Hard,Crash Hard,Upgrade, Align,AMA#906056
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Home✈️Aircraft🚁HelicopterAlignT-REX 700N › Warning about Align Tail Blades (UPDATE)
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