RunRyder - What happens to a thrown blade?

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Safety - RC Helis are not toys > What happens to a thrown blade?

foo
Veteran
Location: Richfield, Minnesota

look b52, its a known fact that raptor blades need to have the root glued with epoxy, they have exploded for other people not exceeding headspeed. You dont know what you are talking about drop it.

Other guy, no mate you use CA to reseal the shrink wrap, you must lightly sand the bottom side of the plastic blade bosses and also the wood where it contacts, then use a good 2 part epoxy to glue that, screwing it together rightaway before the glue hardens, then use thin CA to seal up the shrink wrap, you should have cut it just so it still comes under the black plastic blade bosses anyways so CA shouldnt really be needed, but i still used it. Dont let anyone else kid you, this is important to do.

Raptor 30 v2 / OS .32 / JR 8103 / GY-401+9253 | Raptor 50 V2 / OS .50 Hyper

01-15-2005 Over year old.

B52fixer
Senior Heliman
Location: Oklahoma City, Oklahoma, USA

Number one that's exactly what I am talking about. If the blades have been self-destructing this long then it is time for a new design!! And if your CARBON blades are just exploding then you or the person making the blades is doing somthing wrong!!
And to Ashdec87, I would'nt pay any attention to advice foo gives! Do a search for his post and you will figure that out pretty quick. Ask anybody here.

A word to the wise ain't necessary. It's the stupid ones that need the advice.

01-15-2005 Over year old.

Ashdec87
Senior Heliman
Location: chicago suburbanite

OK hang, someone please give me a straight answer without picking each other apart..

I glued the blade grip to the wood using medium CA...I jsut need to know, will this hold?? Or should i pull it apart and use epoxy??

thanks

ash

01-15-2005 Over year old.

foo
Veteran
Location: Richfield, Minnesota

b52 just out of curiosity how many helis have you built... flown... i rest my case. and no carbon blades dont explode, he is talking about the WOOD blades, they must be glued.

Ash no mate, i already told you, im sorry but youve done it wrong, it might hold, it probally will, but you were supposed to use 2 part epoxy, not ca. Go pick up the TT carbon blades they are nice blades and inexpensive, and for now with the wood blades make sure you keep a low headspeed like 1550 to 1600. My first raptor kit said that the blades only needed to be glued if you exceeded 1750 rpm, but my later kit says that they have to be glued no matter what, and the blades came with the black plastic blade bosses already removed.

Raptor 30 v2 / OS .32 / JR 8103 / GY-401+9253 | Raptor 50 V2 / OS .50 Hyper

01-15-2005 Over year old.

foo
Veteran
Location: Richfield, Minnesota

ash dont take my word for it. it says right in the TT documentation, hth. RTFM

Raptor 30 v2 / OS .32 / JR 8103 / GY-401+9253 | Raptor 50 V2 / OS .50 Hyper

01-15-2005 Over year old.

Ashdec87
Senior Heliman
Location: chicago suburbanite

OK, thanks..

Righ tnow i'm just re-learning, after a long amount of down time, so i'm gonna stick with woodies for now..

There's no way my headspeed is anywhere near 1750 (i think).. There's no hard flying, just hovering and lazy circuits for now..plus i dont have the cash for CF blades yet (no job, i'm only 17

)

ash

01-15-2005 Over year old.

B52fixer
Senior Heliman
Location: Oklahoma City, Oklahoma, USA

RTFM RYOP

Foo RTFM?? why don't you RYOP (read your own post)

Quote
yes i personally think in some ways woods can be more dangerous than carbons. Its their tendancy to come apart, idiots not epoxying the roots, the lead weights. carbons just explode.

I agree that woodies are more dangerous than carbons.And anything moving at a high rate of speed by the automatically gains the tendency to come apart by the way. And regardless of how many helis I have built/flown it all comes down to physics and if blades are built right and not damaged/abused DON'T EXPLODE FOR NO REASON!!! By the way foo how many classes in physic have you had I'll be willing to bet zero. I'm done fighting a battle of wits with an obviously unarmed opponent. so good bye "chicken-little" if you want to keep spreading your propaganda that heli blades could explode at any second then I just hope whoever reads it has enough sense to stop and think about it.

-Andrew

P.S. Read my SIG!!!!
Look out above.... whats that????? Oh no it's a chunk of sky!!!!!!!

A word to the wise ain't necessary. It's the stupid ones that need the advice.

01-15-2005 Over year old.

foo
Veteran
Location: Richfield, Minnesota

Wood blades do explode for no reason if you dont glue them. What i meant by carbons just explode is they just explode in a crash, whereas woods have lead weights.

Raptor 30 v2 / OS .32 / JR 8103 / GY-401+9253 | Raptor 50 V2 / OS .50 Hyper

01-15-2005 Over year old.

B52fixer
Senior Heliman
Location: Oklahoma City, Oklahoma, USA

Once again RYOP.

Quote
Wood blades do explode for no reason if you dont glue them.

I think the lack of CA would constitute a REASON

Don't You?

Case Closed.
Bailiff remove this man from the gene pool!!!!

j/k

A word to the wise ain't necessary. It's the stupid ones that need the advice.

01-15-2005 Over year old.

reckless loony
Senior Heliman
Location: MIA

Quote
I glued the blade grip to the wood using medium CA...I jsut need to know, will this hold?? Or should i pull it apart and use epoxy??

For the Raptor TT recommends epoxy the reason for this is because epoxy fills gaps. If there was NO GAPS between the blade grips and the blades when they were glued then the CA will hold fine.

CA can actually hold more strongly than epoxy since some of the CA actually soaks into the wood fibers.

Kalt helicopters actually recommended the use of thick CA glue for the gluing of the blade grips.

BTW you did remember to remove the blade covering in the area of the grips before gluing didn’t you?

02-05-2005 Over year old.

Ashdec87
Senior Heliman
Location: chicago suburbanite

first off, i have to say that you guys need to stop arguing like this. All this crap that's being thrown at Foo is really pissing me off. I dont know what he did, nor do i care.

Everywhere on this site it's always like "Foo this" or "Foo that" STOP!!

Anyway, sorry.

Loony- yes i did remove the covering

ash

R 30, TT 39, Hatori 415, GY401

02-05-2005 Over year old.

SkateFreak
Key Veteran
Location: Cambs UK/Luton

Hehe...
Yeah, neva did get the hang of glueing thoes woodies...
Its okay now though i guess.... stacked them on friday

An as for Foo....
We totally approve... i mean how can you not totally approve of the inventor of the FooShield!!!! *grins*

-Jvr

Non-3D heli pilots are planker spys trying to bring down the heli community from the inside - Topher

02-05-2005 Over year old.

foo
Veteran
Location: Richfield, Minnesota

well i would use epoxy, everyone else does, tt says to, why not just do it the right way. I would not even begin to trust anything other than thick ca either, because the thin stuff wouldnt do jack.

Raptor 30 v2 / OS .32 / JR 8103 / GY-401+9253 | Raptor 50 V2 / OS .50 Hyper

02-05-2005 Over year old.

RICHW
Senior Heliman
Location: Cupertino, CA

Back in the late eighties, I was flying a Shuttle 30 in my driveway. I switched off throttle hold while idle up 1 was still engaged. I didn't realize at first what was happening and the machine was SCREAMING! I stupidly tried to reach for the fuel line, I am inches from the blades, and one lets go! It shoots off to my left and pierces the fender of my 280Z. The remaining top half of the heli separates from the lower part and arcs high into the air to my right. I am still crouching two feet away from what is left and totally dazed. The sound of the blade going into my car's fender brought the neighbors out right away. They said it sounded like someone had fired a gun. I am sure that I came within 90 degrees of being decapitated. I have used up all the luck I was born with so I now have to be extra careful. Blades were stock woodies with lead weights added. Head speed must have gotten close to 2500 before all hell broke loose.

02-27-2005 Over year old.

SkateFreak
Key Veteran
Location: Cambs UK/Luton

Man,
That sounds totaly mad!
How'd u get the head speed up to 2500

I wanna try

Was it failure on the blade root or head?
SO Close to summink nasty there!
And you still fly

Nice one *grins*

I almost had a thrown tailblade take off my ear...
So yeah lol.
That was funny

-Jvr

Non-3D heli pilots are planker spys trying to bring down the heli community from the inside - Topher

02-27-2005 Over year old.

RICHW
Senior Heliman
Location: Cupertino, CA

It was at zero pitch and full throttle and not really set up well. I was just a beginner, then. It really wasn't until much later, months perhaps, that the seriousness of the situation began to sink in. Up until then I was lamenting the loss of the heli and how much I would have to spend, again, to get back in the air. I still can't believe Ihow close I came to getting killed. Today, I cringe when hovering at eye level like when I'm trying to track blades, so I usually get into FFF and get far away quickly. I still think of the fender.

02-28-2005 Over year old.

SkateFreak
Key Veteran
Location: Cambs UK/Luton

Ahahaa. Yeah
A Minor fender bender would alas be enough to do a lot of damage to the soft fleshy sac of bones we call our bodies lol...
Well, i'd have to admit, i hate tracking blades and like to keep the heli as far away from me as possible !!!
Stay Safe People!

-Mr Jvr

Non-3D heli pilots are planker spys trying to bring down the heli community from the inside - Topher

02-28-2005 Over year old.

Wally_Gator
Senior Heliman
Location: Diamond Bar, CA

First, Even Carbons have lead weights.
I had a set on when my Raptor 50 went down last weekend.
Wasted a good set of blades and they have foam and lead weights.

Everything happens for a reason. Blades get thrown or explode for many reasons. Some reason are just not as apparent as others. Unseen defect in manufacturing or an overlooked scratch in the blade that affects the structural integrity.

Carbon and fiberglass blades harden over time. As time passes they become harder and more brittle due to the nature of the resins used to set the laminates.

03-02-2005 Over year old.

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Safety - RC Helis are not toys > What happens to a thrown blade?

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