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CanoMod . A Main Hobbies . Boca Bearings

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Century Hawk - Falcon - Raven - Predator > Hawk radius arms hitting inside of swashplate
 
 
fotta
Senior Heliman
Location: Toronto, ON

Hi all,

My new, (unflown) was recently set up as a trainer (by my LHS) - everything looks good (like I could really tell the difference at this point)except for one thing.

The "radius link arms" are contacting the inside of the plastic mounts (for the steel balls located) on the swashplate assembly, while at maximum cyclic throws. Can I safely shave the inside of the plastic 'ears' (that hold the steel balls) of the swashplate assembly so that the washout assembly rotates freely? I only need to remove about 1 or 2 mm at the top and this does not seem to be a structural point of the unit.
03-07-2004 Over year old.
 
 
kauaison
Senior Heliman
Location: Alameda, CA

u need to adjust your cyclic atv's (endpoints) so that it doesnt bind, u could shave some away, but atvs is the typical method, 6 degrees of cyclic is plenty (measured at the mains)
03-07-2004 Over year old.
 
 
fotta
Senior Heliman
Location: Toronto, ON

Sorry, I don't believe that I am understanding your advice. I have my pitch curve set at 0 5 9 measured near to the root of the blades. Do you suggest that I set the collective pitch to maximum (throttle all the way up) and then adjust my endpoints so that I have a maximum of 6 deg cyclic at any point in the rotation of the main blades?
03-07-2004 Over year old.
 
 
kauaison
Senior Heliman
Location: Alameda, CA

first of all never measure at the root...

what i mean is your cyclic pitch. (which is measured at the main blades)


with heli and tx on...
set your collective to zero degrees on your radio stcik, check w/ your pitch gauge, now w/o removing the pitch gauge, make sure the main blade grips are pependiclar to the boom(or flybar in line with the boom), and push your cyclic forward, now adjust your pitch gauge to see how much change in pitch u have on the main blades...should be 6 degrees. this is true for both elevator and aileron...positive and negative

remember for aileron, main grips parralel to boom, for elevator, main grips perpendicular to boom

if it isnt 6 degrees, adjust your aileron and elevator endpoints on your radio so that the maximum throw is 6 degrees in both directions. you should get no binding at extreme throws..
03-07-2004 Over year old.
 
 
kauaison
Senior Heliman
Location: Alameda, CA

i would also probably go with a -2, 5, 9 pitch setup for beginer, just my opinion...
03-07-2004 Over year old.
 
 
poiuyt
Senior Heliman
Location: Idaho

Wait! Don't change your endpoints just yet!

This is a really common problem, because Century seems to like sending the prebuilt head components with the linkages connected to the wrong balls on the swash. Here's what to do: You'll notice on your swashplate (metal part), there's 2 long balls and 2 short balls. The radius links are connected to the wrong balls at the moment, they need to be on the short ones or they will bind. So, all you have to do is disconnect all 4 links from the swashplate, rotate it 90 degrees, and reconnect the linkages so you have the radius links on the short balls, and the other 2 linkage rods on the long balls. Poof, no more binding

By the way, I don't want to take anything away from the previous posts because kauaison's setup information is excellent, but your problem is a simpler fix.

Good luck with the learning, I guarantee you'll get hooked on this hobby!!!
03-07-2004 Over year old.
 
 
SteveH
rrProfessor
Location: Texas

Poiuyt is correct. Move the washout "A" arms to the short balls on the inner swash plate ring, where they are supposed to be, and the problem is solved. This has been discussed several times and I don't know why they continue to install them incorrectly.

SteveH
Magnum Fuel
AMA76186
03-07-2004 Over year old.
 
 
fotta
Senior Heliman
Location: Toronto, ON

Thank you all VERY much for the invaluable info. I'm sure that without this site and the experienced members my learning curve would be much flatter.

The cyclic setup info is great! Very clear and easy to understand. And yes, my balls (on the helicopter that is) are in the wrong places. I'll rotate the assembly as suggested.

Thanks again...
03-07-2004 Over year old.
 
 
jshaheen
New Heliman
Location: Lago Vista, Texas - USA

Thank you thank you thank you poiuyt!

I have had my hawk for several months and had 2 crashes where stuff just flew off the rotor head (linkages) after making some hard turns.
This was NOT pilot error and NOT my radio (DX7) since I have never had a problem with it on my trex.

Well my last hawk crash, due to things coming apart, was a bad one and I decided to just purchase a new hawk pro kit.
Well guess what. all four balls on the swash are long!!
Can't these guys at Century get anything right?
Their parts are horrible too. Once I got a flybar in a crash kit which had the flybar arm flat spots in the wrong place.
And parts that were missing pieces in the bags.

Anyhow I looked at my crashed hawk head and yes there were on wrong!

So I took the short balls off of my old swash and put them on the new one which did not have any short balls.

Century better get their act together soon. I doubt I will ever buy any of their heli's again.
05-02-2008 02:55 AM
 
 
JustPlaneChris
Heliman
Location: Austin,TX - USA

Quote 
Century better get their act together soon. I doubt I will ever buy any of their heli's again.
For what it's worth, every manufacturer has an "oops" once in a while. Browse through the Align forums and you'll find stories of bad parts too. I've been very pleased with my Swift, and my newly-acquired Hawk looks like it's going to be a blast too. I see you're just a few miles up the road from me, maybe we'll have to get together and fly sometime!

-Chris
05-02-2008 04:17 AM
HOMEPAGE  
 
 
jshaheen
New Heliman
Location: Lago Vista, Texas - USA

more bad century parts in new kit

Still trying to build this hawk.
Now I have found new bad parts.
The head is bent. As in the part was molded wrong so it is not straight with the main shaft. Guess I will be pulling off another old part to use on the new kit.
Also the tail slider is horrible. I would need 2 servos to drive it the way it is!
fly bar is NOT smooth, all the links are real tight on everything and who knows what else I will find.

I may just stick it all back in the box and send it back to Tower.
This is pathetic.
05-02-2008 05:49 AM
 
 
Dilbeck
Veteran
Location: Springdale Arkansas

Man sorry to here of all your problems, Sounds like they shipped your hawk in a zip lock bag. I did get a flybar with the flat spots off center of each other once on a replacement.

If it doesn't fly sell it!
05-02-2008 04:23 PM
 
 
jshaheen
New Heliman
Location: Lago Vista, Texas - USA

I got the hawk finished and it flew pretty good.
I also contacted Century about the bad parts via their web site.
NO response. Typical support I guess.
No wonder they have such a bad reputation.
05-06-2008 04:09 PM
 
 
Mutt
Veteran
Location: t ca usa

This thread is 4 years old guess some people dont look at the dates. As for contacting century call them thier website you wont get no replys from do a search and you would find that info. Just another typical basher whine if things are not perfect and instead of calling and getting support just whine and cry and bash.
05-06-2008 06:15 PM
 
 
jshaheen
New Heliman
Location: Lago Vista, Texas - USA

Sorry Mutt!

I am fairly new to this hobby (less than a year) and have not viewed all 50000000 posts by everyone like "you" have (Lord of the heli world!).
The bottom line is either YOU work for Century or you are just a smug Mutt who has NEVER received any bad parts from these clowns.
If that is what its all about here then I care no more to participate here with the likes of people like you! You will NEVER see a moronic post from the likes of me again, a pathetic "neewbie" as we are know by the likes of some people like you.

And Please learn how to write proper English since some of us may not understand your translations from whatever language you write/speak to English!

see ya (never)
05-06-2008 06:44 PM
 
 
Mutt
Veteran
Location: t ca usa

Typical jerkoff from texass
05-06-2008 07:32 PM
 
 
jshaheen
New Heliman
Location: Lago Vista, Texas - USA

what this board needs is

more people like poiuyt who contribute to help those of us who need it and not those who just like to bash us.
Can you guess who I am talking about?
Here is a hint
his handle is "Mutt"

All I was saying to others and NOT Mutt was besides the fact that Century sends their stuff out built wrong (more than once I can attest to) they also send out "defective" parts. Key on the word defective.
AND that they do not care when you contact them about it.
Their loss since I won't ever buy anything from them again.

Is that too hard to understand Mr. Century/Mr Butt?
05-06-2008 10:58 PM
 
 
Mutt
Veteran
Location: t ca usa

amd iof you read my post asswipe you call them but I forgot asswipes dont read or know how to use a phone. bye asswipe you made the ignore list like several other asswipes. by the way dont send emails to me as I have blocked your account put it right into the spam list.
05-07-2008 12:11 AM
 
 
oldfart
Elite Veteran
Location: Vancouver, Canada

OK - time to cool it guys.

That being said - they seem to always come through well if you call them....they even have a 1-800 number. SO unless you can type faster then you can talk (I can't) you may find this a more satisfying way to communicate.
05-07-2008 01:15 AM
 
 
the Wasp
rrProfessor
Location: Vt

jshaheen

I'm sorry about your problem and crashes, it can be very frustrating when things go wrong or if parts are missing from a kit, (parts missing) you will find that happens at times with every brand on the market rather a $200 heli or $1200 heli,, the Hawk Pro is a proven heli, it's basic mechanics has been around about 20 years and it's one of the most sold helis on the market today,,,

yes, call Century about the parts missing or like the flybar, I have been dealing with Century for 6 years and I can tell you Century WILL want to know about the flybar,,

fact is your complaints are rare BUT never-the-less they need addressing, so let's find the problem so you can enjoy the heli,,

""had 2 crashes where stuff just flew off the rotor head (linkages) after making some hard turns""

people that have flown the Hawk for years will tell you this just does not happen for no reason, this could have happen from binding, if it happened more than once as you pointed out I would suspect binding somewhere, I believe the Hawk's plastic swash has more deflection than the metal swash,,, how you check for binding in the links is first deflect your swash manually with the radio off and feel for binding, once you know how much the swash can deflect without getting binding you turn on your Tx/Rx and see if you have binding, I do this by first lowering my End-Points, then slowly raise them to the point just before I get binding,,


""Well guess what. all four balls on the swash are long!!"" ,, well actually that is right, you do want all 4 balls long !!


"" As in the part was molded wrong so it is not straight with the main shaft"",, can you be a little more specific here, what part is this ??


tight Ball Links,,
every brand heli I have ever built had tight links, that is the way you want them because if they are loose when new they wont last long at all, to brake-them-in all you need to do is pop them off and on the balls a few times and they will loosen up, make sure you use ball link pliers,,


flybar not smooth, this is just the coating, I have seen this on other brands too, all you need to do is wet sand with 600, or call Century and tell them the problem and ask them to replaces it,,

as Oldfart said, Century has always come threw, but you need to call them, Century gets 300/400 Emails a day, and they just can't read them all..

hope I have helped !!

Jim
the wife wont let me get a Monkey !!,,, damm, can't have anything
05-07-2008 03:12 AM
 
 
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Century Hawk - Falcon - Raven - Predator > Hawk radius arms hitting inside of swashplate
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