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Revolution Models . CarbonXtreme . Midland Helicopters

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e-Align T-REX 250-450-500-600 > T-REX 450 Rotorteck 350mm blades - DO NOT USE!!!
 
 
Helio Addict
Heliman
Location: King William, VA - USA

I found these on Grand RC and thought I would give them a try...They actually flew great until I wiped out one of my tail blades with them while pyro flipping. I'm not sure how I managed to land with only one tail blade and the whole tail casing cranked over about 45 deg. but I did. My advice to everyone is to avoid these. They are definitly too long and interfere with the tail blades.


ROTORTECH 350mm CARBON FIBER MAIN BLADES - T-Rex 450
Price: $36.95
08-19-2007 Over year old.
 
 
Al Austria
Key Veteran
Location: Gainesville, FL

Quote 
They actually flew great until I wiped out one of my tail blades with them while pyro flipping... ...They are definitly too long and interfere with the tail blades.

Well DUH! It seems to me that they were designed for increased lift and lower disk loading for heavier loads, NOT 3D. That's why they offer them in 320mm as well.

RReModels
Century Field Rep
Always remember you're unique, just like everyone else.
08-19-2007 Over year old.
HOMEPAGE  
 
 
Helio Addict
Heliman
Location: King William, VA - USA

Well since your the smart cookie, how come the Rep for this company that puts these out says that they were designed for 3D?
I flew with him today and he told me that there had been "extensive testing" done with these before they were put on the market. I was afraid to put them on my heli so he put them on his and flew one flight with some light 3D stuff and said he loved them. I strapped them on and flew 2 batterys and on the third run is when the strike happened. I was doing pyro flips and not jamming the collective either when it happened.
These are being marketed for the T-rex 450 with no mention that there should be any mods done to accomodate them. I'm just letting everyone know that they are not a good Idea.
08-19-2007 Over year old.
 
 
ArtK
Veteran
Location: San Marcos, Ca

Thanks for the info!!!

Thanks for the feedback, I was thinking of getting them as well based on reports that you can use them for 3D.

They probably work great for just flying around- not inverted. Also, I was thinking it might be fun to figure out a way to use the mini titan belt and get a longer boom then use those blades with a 4s setup.

Thanks again,
Art K.

I love these things!!!
08-19-2007 Over year old.
 
 
heliman06
Heliman
Location: Richmond, BC-Canada

Rotor Tech 350mm is not for Tex450. You should use Rotor Tech 320mm only.
08-19-2007 Over year old.
 
 
TomRex
Elite Veteran
Location: West Palm Beach Fl.

Did you even change your stock dampeners to heavier ones? It seems the rep didn't have the correct knowledge to modify the head for 3D.

The AMA is way better than what you belong to!
08-19-2007 Over year old.
HOMEPAGE  
 
 
Helio Addict
Heliman
Location: King William, VA - USA

I find it interesting how it is now my fault that I'm the stupid one for using these blades. The problem is that they are advertised as T-rex 450 blades. I never would have put these on if the field Rep had not told me that they were supposed to work. He claimed that "extensive testing" had been done and they were bolt on replacements.
If you go to Century's web site they do not mention anything in particular about these.
http://www.centuryheli.com/products/...?currentid=191
08-19-2007 Over year old.
 
 
Jon the Rooster
Elite Veteran
Location: Johns Island, Charleston, SC

Quote 
The problem is that they are advertised as T-rex 450 blades. I never would have put these on if the field Rep had not told me that they were supposed to work. He claimed that "extensive testing" had been done and they were bolt on replacements
This is one of those times where the forum could have helped, Everyone could have told you they won't work on a 450, some of them reps don't even Fly heli's, & to think they give advice!!!
Sorry for the Loss, chalk it up to expirence!!

and one more thing "DON'T BE AFRAID!"
08-19-2007 Over year old.
 
 
Charliedog
Heliman
Location: NZ

I will back you up man,i just looked into them and they clearly state that the 350s are suitable for the 450

i reckon they are at fault for not fully testing them and i appreciate you bringing the fault to our attention
08-19-2007 Over year old.
 
 
lightningrc
Elite Veteran
Location: UK

Yes get them to give you free parts !!
08-19-2007 Over year old.
HOMEPAGE  
 
 
drdot
Elite Veteran
Location: So. California, Orange County.

fwiw....Not to throw kerosene on the fire, but what did they tell you to do with the gearing? 350 blades will be far too much for most motor /batt combos in use currently unless geared down...Then the 3D potential drops even farther....Like my daddy used to say, Caveat Emptor...

JOhn.
08-19-2007 Over year old.
 
 
Jon the Rooster
Elite Veteran
Location: Johns Island, Charleston, SC

Quote 
Like my daddy used to say, Caveat Emptor...
What the Hell??? What's dat mean???

and one more thing "DON'T BE AFRAID!"
08-20-2007 Over year old.
 
 
Boidman
Key Veteran
Location: home

Quote 
Quote 
Like my daddy used to say, Caveat Emptor...
What the Hell??? What's dat mean???

That's Latin for: "crap, my beer's empty!"
08-20-2007 Over year old.
 
 
ArtK
Veteran
Location: San Marcos, Ca

Buyer Beware- I think


Just like the good old days. Our society doesn't put up with misrepresentation very well. I think since wagons and horses.

I love these things!!!
08-20-2007 Over year old.
 
 
drdot
Elite Veteran
Location: So. California, Orange County.

fwiw..

Actually, it means "crap, My IMPORTED beer is empty!"

John.
08-20-2007 Over year old.
 
 
beavis1
Veteran
Location: New York state

Not Nice !!!!!

I am the Rep in question

One I do Fly and I do not give advice lightly on forums or at the Field.

two
Helio Addict was trying to make the public aware as a good guy there was a problem fliers going down our path should be aware of.
I was working the Century side for them to do the right thing and change the advertising stating the usability of these ect....

It has been pointed out to them with no response to date.

These are not safe for 3D on a 450 in the stock form. Are they safe with heavy dampening that is for them to prove.

Saying DUH to him or saying I do not fly is not helpful. He and I hope you find we are trying to help positivly. He did not have to say boo but yet he went out of his way to post this.

When these blades came out the Reps myself included questioned them right off. Discusion on how the higher head speed and lower inertia forces due to light mass ect ect followed. In any case Century tests all thier products here in CA and overseas. As reps we are not in any way reimbursed to test. If we do it we do it at our own risk.
I can not buy and test every item they sell I have to fall back on trust of the company at some point.

So that is where we were at in the field that day. Helio and I both had natural reservations. I fell back on the fact that they were tested and Century would not put a product to the customers that was not tested. I know other reps have run them succesfully but head dampening ect unknown. So I took the risk and flew them first. I gave them a fairly good workout to where if they were going to they should have struk (stick banging tic tocks pushout ect). I am no where the pilot helio is but I can stick bang I also really liked the blades over what I was flying prior the flight quality change was evident so we definitly wanted to see how helio liked them. So we had the Companys word they were for the heli my test and our curiosity. Helio flew them on my word and honor I am ultimatly responsible 100%

Helio then put them on his and doing very very smooth piro flip the main blade took off the tail blade and shattered the 350MM blade tip.

We went thru the why it happened on mine than his a little and I definitly was running heavier dampening. I had the larger spacers compressing the o rings. There was nothing wrong with his dampening it was stock firm dampening far from worn out or soft.

Yes common sense and our better judgment told us they would strike, but when I am told they have been tested and we have seen posts of people using them we went ahead and tried.

Well as a good guy He went out of his way and posted here and now to not run them for 3D. He should be thanked not blamed.

Please have mercy on me though

Holo foil power !!! Magnum fuel Century Rep
08-21-2007 Over year old.
HOMEPAGE  
 
 
TrexRookie
Key Veteran
Location: San Francisco, CA

well, coming forward and facing the fury definitely tells me that you're at the very least, willing to take the 'public responsibility' for this mishap. good news is, no one was hurt, and we all learn from it. or at least, some learn from it..
08-21-2007 Over year old.
 
 
Helio Addict
Heliman
Location: King William, VA - USA

Quote 
This is one of those times where the forum could have helped, Everyone could have told you they won't work on a 450, some of them reps don't even Fly heli's, & to think they give advice!!!
By the way...taking advise from you would also be stupid since you judge my man Beavis1 without even knowing him or his experience level and you even slam his flying abilities! Beavis1 is a great pilot and very knowledgeabe.
Thanks Beavis1!!! Look forward to flying with you this weekend in Rochester.
08-22-2007 Over year old.
 
 
rtdillon
Heliman
Location: Huntsville, AL

THANK YOU

beavis1,

Thank you for stepping up and explaining the details.
It is rare these days and appreciated!

RTDILLON

No,No..The other left!
08-26-2007 Over year old.
 
 
Two Left Thumbs
Veteran
Location: Houston, Texas - USA

Quote 
I definitely was running heavier dampening. I had the larger spacers compressing the o rings.

I never know where I am going to learn something new. Nothing to do with this thread, except that beavis1 unwittingly explained to me about head dampening. I'm not ashamed to admit I did not know how the larger spacers worked. Thanks!

Sorry for the thread hijack.
08-26-2007 Over year old.
 
 
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e-Align T-REX 250-450-500-600 > T-REX 450 Rotorteck 350mm blades - DO NOT USE!!!
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