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HelicopterCentury Radikal G20-30 N640 Hawk Predator › RADIKAL Tail Hub Loose - Check This!
12-29-2009 04:01 AM  7 years agoPost 41
rkeith2

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Norco, CA

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I have to confess, I did fly the G20 and it tracks well however; I have to say that the G26 in my 710 and 810 Bergen ships with the FBL head is truly "Radikal"

Lets race Curtis


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12-29-2009 04:11 AM  7 years agoPost 42
oldfart

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Vancouver, Canada

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Yep, any heli is radical with an FBL head and its electronics (which add significantly to the overall cost). IMHO, it is unfair to compare any flybared heli to another using an FBL head.

Much like comparing a heli with an old yaw rate mechanical gyro (as that, in effect, is what the flybar is to the main rotor head) to one that has a modern Heading Hold gyro with a top digital servo!

Now, if we were to compare the Radikal/G20, equiped with the Century flybarless head and the proper electronics to your Bergen......I would put my money on the Radikal.

And I would have enough capital left over in my bank account to buy the the wife some very nice bling.

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12-29-2009 04:16 AM  7 years agoPost 43
rkeith2

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Norco, CA

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One old fart to another

I don't have any electronics in my FBL!

I fly naked and it is nice - ask Curtgra

I am currently running 3 Bergen machines FBL with NO stabilization.


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12-29-2009 04:56 AM  7 years agoPost 44
curtgra

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Corona, CA USA

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Oh No!! Out comes the measuring stick......

Rons FBL helis (Bergens) are cool, espcially the turbine. I'm still dumbfounded on exactly how those FBL things work. And the way I fly, more sensitive for me = date with terra firma. Some day..

Can I try yours.............No, get your own!

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12-29-2009 05:12 AM  7 years agoPost 45
oldfart

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Vancouver, Canada

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So how do they track in FFF or FBF and through aerobatics and 3D?

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12-29-2009 03:57 PM  7 years agoPost 46
rkeith2

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Norco, CA

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I could post some videos but Mark R may not approve ...

I have a few in flight vids over on Youtube under rkeith2


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12-29-2009 05:39 PM  7 years agoPost 47
oldfart

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Vancouver, Canada

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OK - will look it up.

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12-30-2009 06:03 AM  7 years agoPost 48
steve500

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nz

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poor fitting parts

I agree will the issue brought to light over helis with poor fitting parts and yes I have tried lots of brands in the past
I my self have not owned a century heli but to be able to jump on the forum and check out a machines info before I buy one is great which brings me to a matter over a good friend of mine who was merely stating a great point on some of the parts being a poor fit and not yet been rectified as others are complaining ,I have known him a long time and he is a very knowledgeable and skilled pilot with impecable building skills that was just stating the FACTS which is well deserved as having owned one from new, so as for all the childish nonsense telling people to "GET A LIFE" maybe they just aren't as meticulous on how their machines are set up and fly.......... like we are !

remember these forums are for finding out info, chatting and meeting new friends with the same interests its a shame some get so hot headed.

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12-30-2009 07:44 AM  7 years agoPost 49
Billme

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MS

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ok, Lets put it out on the table Steve 500

What poor fitting parts are still a problem?

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12-30-2009 07:53 AM  7 years agoPost 50
Gearhead

rrMaster

Vt

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Bill, notice that is Steve's first post

Jim
Buzz Buzz Buzz

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12-30-2009 10:01 AM  7 years agoPost 51
steve500

rrNovice

nz

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Hi Bill going on (curtgra first post)
Also I notice that the t/r hub really isn't a snug fit on the shaft. Its almost like the hub hole is a little oversize. To me (and like my other birds), the hub should fit as snug as the slider.
2nd one.
After I had the Radikal sittin on the tailgate and had some of the "guys" checkin out the new ship on the block. When I undid the tail links and loosened the set screw, some seem to think that the hub was TOO loose on the shaft itself. And thats what I had thought. If I remember correctly hubs on my other ships was more of a snug fit on the shaft itself. This hub seemed very loose, so much so that you'd swear it was the wrong hub for the heli
Im looking at getting a Radikal next year so you guys tell me about this hub then as very confused. .
Thanks steve

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12-30-2009 03:53 PM  7 years agoPost 52
Billme

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MS

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Steve,

These hubs are made at 1000's at a time. You will sometimes have a bad hub...This is just part of manufacturing..You can't pay people to check every part, for the amount you make on the kit. If one slips by, they just replace it..Every Company, does this...

Every Co wants you to have a good part, no one wants bad parts...

Now if this was a Major component like clutches off center, or heads, that is a different story...I would be raising heck. This is not GM, or nasa.. We should be so lucky huh?

Its crazy to have holes 180 degs out... In the instruction book on page 33, the drawing shows one set screw to be used.. Some folks see the two holes, and get a warm feeling that two should be used, and when they tighten them, the can spread the block, and its useless after that...

To destroy 1000's of perfectly good hubs because of the extra wrong hole would be waste, and loss for any Co.. So long as its safe, and works..
The greatest thing of all is, if it doesn't fit, you get to replace it by contacting the Co...
I'm sure pilots can see by just looks of the Radikal, Century has stepped up a notch... Is it perfect? no, but its going to be if I have any say so in it

Bill

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12-30-2009 04:11 PM  7 years agoPost 53
rbort

rrProfessor

Franklin, MA - USA

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Hey Bill

You might want to tell Century to not provide that extra setscrew with the addendum sheet for the tailrotor assembly - that little sheet with the picture of the tail hub/grips. Them providing it suggests that its for this purpose (to be put in the 2nd hole in the hub), and may be what is causing folks to do this.

Instead, until the 1000 hubs with two holes in them are used, may be best to put a note in there to say use only 1 setscrew in the hub.

-=>Raja.

MA 1005 Hanson 280, 4129 flts
Spectra 27 3DMax, 3187 flts
Whiplash V1 Hanson 300, 1425 flts
Whiplash V2 Hanson 300, 185 flts

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12-30-2009 04:45 PM  7 years agoPost 54
Billme

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MS

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Wait just a minute...
That addendum was for a missing part that was not included in the kit...That doesn't suggest anything..

When you build, you go by the plans..

Yes, it was noted right after those hubs were made Raja...

Your logic threw me , which most of the time, I have to really sift through when you say something...

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12-30-2009 05:32 PM  7 years agoPost 55
James Kovach

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canton, oh - US

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Hey Bill
You might want to tell Century to not provide that extra setscrew with the addendum sheet for the tailrotor assembly - that little sheet with the picture of the tail hub/grips. Them providing it suggests that its for this purpose (to be put in the 2nd hole in the hub), and may be what is causing folks to do this.

Instead, until the 1000 hubs with two holes in them are used, may be best to put a note in there to say use only 1 setscrew in the hub.

-=>Raja.
Unless we have different addendum sheets in our kits, no where in mine does it allude to adding a second set screw to the tail hub. It clearly states the following in reference to the set screw that is in the package with one of the addendums.........
"The M3x4 set screw is part #24 on page 32 of the instruction manual. It is used on the Tail Output Shaft"
Not sure how you could mistake that for adding a second screw to the tail hub. The manual clearly shows you to only install one set screw in the tail hub.

The other addendum that has the diagram of the tail grips and tail hub again has nothing to do with the tail hub. In the package with that addendum are 3 x M3 Lock nuts. It clearly shows you in red what those lock nuts are for. I assume this addendum is there because the did not include enough M3 Lock nuts in the kit.

I guess maybe they could have been more clear for the "Average Joe"??

*disclaimer: These are my opinions. Agree or disagree, Your Call :)
Let'r Rip Tator Chip

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12-30-2009 06:10 PM  7 years agoPost 56
rbort

rrProfessor

Franklin, MA - USA

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OK, let me make it more clear

Here is a picture of the addendum for your easy reference Sparx:

In this package, along with the nuts, is a little setscrew.

Also in this picture is a picture of the setscrew being shown put into the tail rotor hub.

Don't you think for a moment this can cause confusion for the "average joe"?

That's what I'm talking about.

-=>Raja.

MA 1005 Hanson 280, 4129 flts
Spectra 27 3DMax, 3187 flts
Whiplash V1 Hanson 300, 1425 flts
Whiplash V2 Hanson 300, 185 flts

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12-30-2009 07:23 PM  7 years agoPost 57
James Kovach

rrKey Veteran

canton, oh - US

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That is the package that the set screw was in and is associated literature. It clearly tells you the intended use of the set screw. You can see the screw is IN the package. This picture was taken DURING my build and the packages were not opened yet.

Since my picture does not show the tail addendum clearly, I will use yours for reference.

And here is a cut and past from the manual

On the addendum, the "changes" are show in RED. Neither the addendum or the manual show using 2 set screws on the tail hub.

I also did not open the package with the tail assembly addendum in it. All it has was 3 x M3 Lock nuts in it. I have an abundance of them in my parts drawers so I just used them. There is NO set screw in that package.

I do not know how this could be any more clear? I am not seeing how it could be confused at all. Please enlighten me.

*disclaimer: These are my opinions. Agree or disagree, Your Call :)
Let'r Rip Tator Chip

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12-30-2009 07:38 PM  7 years agoPost 58
rbort

rrProfessor

Franklin, MA - USA

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QC?

All it has was 3 x M3 Lock nuts in it. I have an abundance of them in my parts drawers so I just used them. There is NO set screw in that package.
There WAS a set screw in my package. I JUST pulled it out just last night to use it on the coupler for the top mount generator that I was working on.

I had to fish that package out of the garbage to take the picture for you today. The set screw was the last thing that was in it that I finally used before throwing it out.

Regardless, that photo shows a set screw going into the tail hub, and a set screw was in my package. I'm sorry to say I don't have a photo for you with the set screw in it - I used it last night. I could have put it back in for the photo but that's not right. I'm throwing the package back in the garbage now, ok?

In any case that could very well cause some confusion, but if you say it doesn't then it doesn't and don't worry about it, its all good.

-=>Raja.

MA 1005 Hanson 280, 4129 flts
Spectra 27 3DMax, 3187 flts
Whiplash V1 Hanson 300, 1425 flts
Whiplash V2 Hanson 300, 185 flts

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12-30-2009 08:14 PM  7 years agoPost 59
James Kovach

rrKey Veteran

canton, oh - US

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I guess I am just not seeing the possible confusion. At least we have now clarified it for the others out there that might also be confused.

*disclaimer: These are my opinions. Agree or disagree, Your Call :)
Let'r Rip Tator Chip

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12-30-2009 08:40 PM  7 years agoPost 60
steve500

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nz

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Hi again Bill thanks for the reply and info I guess Ill no more when I own one and its good to know century will replace the parts if needed

Steve.

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HelicopterCentury Radikal G20-30 N640 Hawk Predator › RADIKAL Tail Hub Loose - Check This!
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