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HomeAircraftHelicopterHelicopter Main Discussion › Safety wire in main blades
05-09-2011 06:45 PM  7 years agoPost 1
CACTUSJACK (RIP)

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State of Confusion

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We were flying this weekend and a guy shows up to fly with us, and he is from the UK. We started talking about the weights in main blades coming out in flight, like the Align 600'S awhile back and he told us that there are safety laws that prohibits adding safety wire in blades in Europe. This seems ludicrous to me, can anyone from Europe confirm this?

X5X7 Animum Vestrum Negotium Agatis

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05-09-2011 06:52 PM  7 years agoPost 2
The man

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at home

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With or without safety wire, a carbon blade is still a lethal weapon. Without it becomes a random shooting one.

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05-09-2011 08:02 PM  7 years agoPost 3
bigwolf1

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USA

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The Mah blades have saftey wire in them. That's what I fly both FBL and FB.

MAH blade Rep
Trex700LE
Magnum fuels

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05-09-2011 08:25 PM  7 years agoPost 4
Chris Bergen

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cassopolis, MI USA

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The safety wire is supposed to keep the blade in one piece in a crash sequence, EDGE blades, MAH, Radix, all use it.

I think someone may be confused on "safety laws that prohibits adding safety wire in blades in Europe."

Chris D. Bergen

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05-09-2011 09:38 PM  7 years agoPost 5
red_z06

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Dumont, NJ

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MSH Champion blades did not have. The weight flew 230' and hit me in the eye destroying the iris in that eye. So, please use blades with safety wire with or without the law.

While I have seen 1/2 of cf blade fly off 100' or so but never seen one go 230'

www.JustinJee.com

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05-10-2011 01:23 AM  7 years agoPost 6
Heli-on

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Southern Cali, CA - USA

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I had one launch out of a Align 425D blade a little over a month ago. Under 10 flights on the set. The vendor at least reimbursed me for them.

All I knew was the heli developed a vibration. I Have no idea what caused it, when it happened, or where the weight went.

I agree that safety wires should be mandatory.

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05-10-2011 02:47 AM  7 years agoPost 7
FILE IFR

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Anytown, USA 01234

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MSH Champion blades did not have. The weight flew 230' and hit me in the eye destroying the iris in that eye.
Really?? You lost your eye? When did this happen?

Futaba.. Always Imitated, Never Duplicated.

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05-10-2011 04:50 AM  7 years agoPost 8
Taipan

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Sydney, Australia

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Funkey manufacture blades for Rotortech, Radix, Edge and many more. All should have safety wire in them.

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05-10-2011 11:37 AM  7 years agoPost 9
gotnoclue

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sydney

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i smashed up my radix 690FBL's on the weekend and no safety wire in them.
rotortech definately do though

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05-10-2011 12:16 PM  7 years agoPost 10
MartyH

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USA

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Can we make a definitive list of what blades (brand and size) DO for sure have safety wire in them? If I had such a list I'd only be flying those blades for safety.

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05-10-2011 05:19 PM  7 years agoPost 11
MattJen

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UK

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I fly in the UK,

I have never heard of the No wire in the blades, I cannot find it in the BMFA manual either..

I think it is a good idea I even use ali blades now and i wish they had that safety wire running through them, it would make them very safe in the event of fatigue.

I fly with MAH 950mm blades, interesting i did not know they had wire through them, there is nothing to say they do, learn something every day!

Matt

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05-10-2011 05:23 PM  7 years agoPost 12
oldfart

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Vancouver, Canada

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RotorTech and FK blades were on the market many years before Radix, Edge, MAH or most any others and they always had safety wire incorporated in their designs for going on 15 years!!

I believe they were the pioneer of that design.

Phil

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05-10-2011 05:52 PM  7 years agoPost 13
Shawn Behrens

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DEEP IN THE BOG

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FWIW
I have never seen safety wire in any blade under 500mm in length.

shawn

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05-10-2011 05:59 PM  7 years agoPost 14
jandrews

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Houston, Texas USA

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I wonder if anyone has tried using a weight that is either powdered or in small granules, so that if the blade breaks it will disperse and not travel very far before it becomes harmless?

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05-10-2011 10:03 PM  7 years agoPost 15
LaurenceGough

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UK

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All edge blades above 325 (not 325) have safety wires.

I think most top end blades are the same.

325's really are not going to be too bad in a crash and worst case the bits hardly fly far at all, if they even separate from the blades.

As for legal issues, they're sold in the UK so I buy them... Safer than not having one.

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05-10-2011 10:39 PM  7 years agoPost 16
BarracudaHockey

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Jacksonville FL

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Just for the record, I'm pretty sure that safety wire isn't going to keep you getting hit from a hunk of lead slung out. It may help but it wont garantee it in any case.

Andy
AMA 77227
http://www.jaxrc.com

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05-10-2011 10:48 PM  7 years agoPost 17
dialarotor

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Traverse City, Michigan

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X-cell blades have them
Broke a ball link in my R90 rotorhead, did a fast porpoise move leading to a big boomstrike, split a nice set of blades open. Damn, liked those blades. Anyway lead weights were still there popped out of the blades hangind by the safety wires. Great Idea. I go back to the days of building blades, expoxying in lead weights into groves and covering with Fastcal or shrinkwrap. Sure do like lead safety wires, always was on the back of your mind & worried about flinging a weight out of the old woodies. Luckily it never happened to me.

RapRexSynLogo Pilot

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05-11-2011 04:47 AM  7 years agoPost 18
aliosha323

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Los Angeles, California

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I went through 2 sets of Mavv Pro WC G5 600's and 620's. Both did NOT have safety wire holding the weights in the blade. for the record, the weights were also a collection of small disk shaped (lead?) weights in a foam cutout of the blade, then epoxied into the hole and closed up. I bought these blades almost a year ago and now reading this thread, makes me wonder of the newer versions have them?? any one crash a set??

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05-11-2011 02:19 PM  7 years agoPost 19
red_z06

rrProfessor

Dumont, NJ

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Safety anchor wire is not only for lead weights. In the event of a crash, half blade could become a projectile. Although not as powerful as the lead itself due to density, it still can do damage.

With safety anchor, cf layers can split open and loose shell can fly off but due to very low mass, it can't fly far.

But, safety anchor will prevent lead shooting out in flight as well.

www.JustinJee.com

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05-11-2011 02:22 PM  7 years agoPost 20
BarracudaHockey

rrMaster

Jacksonville FL

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Help maybe, not prevent.

The hunk of lead that hit me that same day came from a safety wire blade.

Bottom line that day was that flying 3D infront of spectators over asphault was/is a bad idea.

Andy
AMA 77227
http://www.jaxrc.com

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HomeAircraftHelicopterHelicopter Main Discussion › Safety wire in main blades
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