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Lieutenant Dan · 05-02-2004, 02:14 PM

actually my friend doesn't own a Century, he flies mine when I let him...

I edited my post above...

Jim

Al Magaloff · 05-02-2004, 06:19 PM

I see I've made Jim's ignore list, along with a whole bunch of other village idiots. I so do miss the "WOW" factor Jim! Don't worry Jim, I won't bust your balls again.

rstacy · 05-02-2004, 07:04 PM

Quote:

I see I've made Jim's ignore list,

Now that surprises me!
Ill bet some people miss that feature here.

Welcome to the club.

ThBrtmn · 05-02-2004, 07:30 PM

Quote:

I see I've made Jim's ignore list,

Im just glad we can all start to act our age and not get so riled up when someone ruffles feathers intently for reaction.... Thanks Jim for starting a trend...

Lieutenant Dan · 05-02-2004, 10:18 PM

Ray, Al, I'm actually starting to like you guys !!, I will take your names off my RR ignore list,

we are having a fun fly Jun 5th & 6th, if you guys can make it I will shake your hands (I promise to wash my hands first

)

Jim

Tom Fiddler · 05-02-2004, 11:15 PM

(I promise to wash my hands first )

LOL your to much Jim!!
Like i said glad you got her flying better

rstacy · 05-03-2004, 06:24 AM

Quote:

Ray, Al, I'm actually starting to like you guys !!, I will take your names off my RR ignore list,

Aw Jim. I dont know what to say.

Jeff H · 05-03-2004, 06:29 AM

Quote:

, I was simply cheering for my side !!

Glad to see you finally admit it Jim

Ray how is the little hawk flying for you?

rstacy · 05-03-2004, 07:45 AM

[quote="Jeff H"]

Quote:

Ray how is the little hawk flying for you?

Not as well as I would like.
I liked how it went together.
The head looks like an older miniature Xcell head.

The wire drive for the tail sucks big time.
It had serious wind up problems.
I was pretty certain that this would be a problem but many RR whiffle ball simulator pilots assured me that it wouldn't be a problem.
Well it is.
I did the SteveH upgrade to .093 drive wire and it did get better but it still not right. I didn't have a chance to work with it this weekend.
It also sounds like I received one of the clutch bells that didn't have the liner glued in properly. I may need to drop the motor and fix that.
I have to keep reminding myself that I only paid $159.00 for this machine.
The tail rotor servo and gyro cost more that the helicopter!
Tom F thinks that may be the problem. I need to go find a Fu Taba 153 gyro for this heli!

ThBrtmn · 05-03-2004, 10:15 AM

Quote:

The tail rotor servo and gyro cost more that the helicopter!

LOL...I never thought of it that way...

Jeff H · 05-03-2004, 11:29 AM

Quote:

Tom F thinks that may be the problem. I need to go find a Fu Taba 153 gyro for this heli!

I've got a 701 Telebee in the basement, and a FMA servo that I'll trade you. That way, you won't have that much $ tied up in it for that fateful day.

Lieutenant Dan · 05-03-2004, 12:00 PM

Ray, try wheel bearing grease on the wire...

Jim

Jeff H · 05-03-2004, 01:57 PM

exactly how does grease help with a flexibility problem?

Ray, Torque tube

Lieutenant Dan · 05-03-2004, 02:28 PM

I don't believe the wire drive needs to flex !!, I used wheel bearing grease on mine and I never had a problem with the drive wire twisting, I use-to piro my Hawk so fast I was told I was going to brake something "but never did"...

Jim

rstacy · 05-03-2004, 02:49 PM

It isnt the pirouette rate that suffers.
It is the holding power that causes wind up.
Turn the gain up enough to get decent holding power and the tail will start whipping back and forth in an oscillating manor. The sound will be like a rubber band being stretched. The longer you let it go, the worse it gets.

I could get the wind up to stop by turning the gain down but then the gyro performance would be horrible.

ThBrtmn · 05-03-2004, 03:02 PM

Ray...all I have is my experience with my Hawk and others around me...
...So you are saying that you are getting a wag in the tail? Is it during manuevers or hovering? Is it possible that it is the type of gyro or servo?
With mine and others around me, I havent ever heard the rubber band noise you speak of. One guy had a telebee once but got the 401 combo... thats what we were all flying on ours...I wish you could have flown mine before I put the TT in it.

rstacy · 05-03-2004, 03:10 PM

I suppose anything is possible. This combo has worked in other helis.
The rubber band sound is a combination of the pitch and RPM of the tail rotor changing as it tries to keep with the demands of the gyro.
I havent had a chance to work with it much since changing the drive wire.
I hope to play with it this week.

Lieutenant Dan · 05-03-2004, 03:11 PM

""The sound will be like a rubber band being stretched"",,, yes, yes, I did have this (and the wag) with my Hawk SEv2 wire drive with the 401 & S9253 !!

"oldfart" told me to use a longer servo arm and set the ball at the end of servo arm and turn down my sensitivity on the Tx, after I did this I never had that problem again,,,

oldfart called it GIO "Gyro Induced Oscillation"

when rebuilding after a crashed I saw NO sign of the wire twisting...

Jim

rstacy · 05-03-2004, 04:56 PM

Jim,

Thanks for the input.
That is exactly what I am running into.
And as you have found out, doing the things Phil suggested will settle it down.
The problem is that the gyro will no longer hold as well as it should or could.

Jeff H · 05-03-2004, 06:09 PM

Jim and Bart,
do a blinding 540 and try to have the tail stop on a dime. It will overshoot every time. That is wind-up, any demanding tail manuver is almost impossible with a wire tail.

Try full speed backwards flight or forwards for that matter, then do a pyro. Notice how the pyro speed is very inconsistant... that is the wind-up.

05-02-2004, 11:15 PM	#26 (permalink)
Tom Fiddler Registered Users Join Date: Apr 2004	(I promise to wash my hands first ) LOL your to much Jim!! Like i said glad you got her flying better __________________ Fly On Tom Stator Gator Sold Heli's to build AMC Racecar....still lurking

05-03-2004, 03:02 PM	#36 (permalink)
ThBrtmn Registered Users Join Date: Mar 2004	Ray...all I have is my experience with my Hawk and others around me... ...So you are saying that you are getting a wag in the tail? Is it during manuevers or hovering? Is it possible that it is the type of gyro or servo? With mine and others around me, I havent ever heard the rubber band noise you speak of. One guy had a telebee once but got the 401 combo... thats what we were all flying on ours...I wish you could have flown mine before I put the TT in it. __________________ "FREAK" Out ~Bart~

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05-02-2004, 02:14 PM	#21 (permalink)
Lieutenant Dan Registered Users Thread Starter Join Date: Apr 2004	actually my friend doesn't own a Century, he flies mine when I let him... I edited my post above... Jim

05-02-2004, 06:19 PM	#22 (permalink)
Al Magaloff Join Date: Apr 2004	I see I've made Jim's ignore list, along with a whole bunch of other village idiots. I so do miss the "WOW" factor Jim! Don't worry Jim, I won't bust your balls again.

05-02-2004, 10:18 PM	#25 (permalink)
Lieutenant Dan Registered Users Thread Starter Join Date: Apr 2004	Ray, Al, I'm actually starting to like you guys !!, I will take your names off my RR ignore list, we are having a fun fly Jun 5th & 6th, if you guys can make it I will shake your hands (I promise to wash my hands first ) Jim

05-03-2004, 12:00 PM	#32 (permalink)
Lieutenant Dan Registered Users Thread Starter Join Date: Apr 2004	Ray, try wheel bearing grease on the wire... Jim

05-03-2004, 01:57 PM	#33 (permalink)
Jeff H Join Date: Apr 2004	exactly how does grease help with a flexibility problem? Ray, Torque tube

05-03-2004, 02:28 PM	#34 (permalink)
Lieutenant Dan Registered Users Thread Starter Join Date: Apr 2004	I don't believe the wire drive needs to flex !!, I used wheel bearing grease on mine and I never had a problem with the drive wire twisting, I use-to piro my Hawk so fast I was told I was going to brake something "but never did"... Jim

05-03-2004, 02:49 PM	#35 (permalink)
rstacy Registered Users Join Date: Apr 2004	It isnt the pirouette rate that suffers. It is the holding power that causes wind up. Turn the gain up enough to get decent holding power and the tail will start whipping back and forth in an oscillating manor. The sound will be like a rubber band being stretched. The longer you let it go, the worse it gets. I could get the wind up to stop by turning the gain down but then the gyro performance would be horrible.

05-03-2004, 03:10 PM	#37 (permalink)
rstacy Registered Users Join Date: Apr 2004	I suppose anything is possible. This combo has worked in other helis. The rubber band sound is a combination of the pitch and RPM of the tail rotor changing as it tries to keep with the demands of the gyro. I havent had a chance to work with it much since changing the drive wire. I hope to play with it this week.

05-03-2004, 03:11 PM	#38 (permalink)
Lieutenant Dan Registered Users Thread Starter Join Date: Apr 2004	""The sound will be like a rubber band being stretched"",,, yes, yes, I did have this (and the wag) with my Hawk SEv2 wire drive with the 401 & S9253 !! "oldfart" told me to use a longer servo arm and set the ball at the end of servo arm and turn down my sensitivity on the Tx, after I did this I never had that problem again,,, oldfart called it GIO "Gyro Induced Oscillation" when rebuilding after a crashed I saw NO sign of the wire twisting... Jim

05-03-2004, 04:56 PM	#39 (permalink)
rstacy Registered Users Join Date: Apr 2004	Jim, Thanks for the input. That is exactly what I am running into. And as you have found out, doing the things Phil suggested will settle it down. The problem is that the gyro will no longer hold as well as it should or could.

05-03-2004, 06:09 PM	#40 (permalink)
Jeff H Join Date: Apr 2004	Jim and Bart, do a blinding 540 and try to have the tail stop on a dime. It will overshoot every time. That is wind-up, any demanding tail manuver is almost impossible with a wire tail. Try full speed backwards flight or forwards for that matter, then do a pyro. Notice how the pyro speed is very inconsistant... that is the wind-up.

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