RunRyder RC
WATCH
 1 page 552 views POST REPLY
HomeRC & Power✈️Aircraft🚁HelicopterRadio - Servo - Gyro - Gov - Batt › create neutral position for GY611
04-23-2009 05:52 PM  10 years ago
Topic Vote0Post 1
Amr

rrNovice

Alexandria - Egypt

MyPosts All Forum Topic
create neutral position for GY611
Hi , anyone has experience how to re-read the neutral position (trim) of Gyro Futaba 611 with Remote JR propo DSX 7 , the problem is the Gyro is not locking the tail , so with pitch the tail is going in circles as well and it is not clear how to adjust it in the Gyro manual .

Amr
SHARE  PM  EMAIL  Attn:RR  Quote
04-23-2009 05:56 PM  10 years ago
Zaneman007

rrElite Veteran

Texas - USA

MyPosts All Forum Topic
Futaba gyros will read the current position as neutral upon initialization(when turned on). In other words, if you put trim in the gyro, then turn the gyro off then on, it will see the trim as Center.

Sounds like you have something else going on?
Old Guys Rule!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-23-2009 05:58 PM  10 years ago
Auto180_OCMA

rrApprentice

Futaba City Z (Mobara)

MyPosts All Forum Topic
Read the manual again
Under the section How to memorize trim.

I hope that helps you
AMA 334000
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-23-2009 06:38 PM  10 years ago
Amr

rrNovice

Alexandria - Egypt

MyPosts All Forum Topic
What i understood is if i use FUTABA remote it reads automatically , but with JR it is different , i was moving the gear switch three times in a second to make the reading.
but i didn't try to add trim , how can i do that in JR remote .
SHARE  PM  EMAIL  Attn:RR  Quote
04-23-2009 06:45 PM  10 years ago
Zaneman007

rrElite Veteran

Texas - USA

MyPosts All Forum Topic
I do not believe that is correct.

I am using a JR9303. The 611 "Re-initializes" on power on. Regardless of the radio. The only quirk with the 2.4JR is that on occasion it will send a signal to the Rx while the gyro is initializing. This will confuse the gyro. But, it is easily detected. The gyro will start to drift until it hits full travel. Reinitializing power to the heli fixes it 99% of the time.
Old Guys Rule!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-23-2009 06:46 PM  10 years ago
Auto180_OCMA

rrApprentice

Futaba City Z (Mobara)

MyPosts All Forum Topic
You need to the Gyro in CMT mode
Then when you switch to NORMAL and only in normal mode you can trim the tail. Then you use the gear or whatever else switch you have to memeorize the TRIM. On the the gyro box you ll see *** displayed for a few sec.

After that you switch back to AVCS mode. Now you probobly know this but never use the Rudder trim When you are in AVCS mode.

On the ground to center the rudder you hit the rudder stick 3 times and you get neutral.

I m not a JR Expert you might want to ask a JR expert.

Hope that was some kind of help
AMA 334000
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-23-2009 06:53 PM  10 years ago
Zaneman007

rrElite Veteran

Texas - USA

MyPosts All Forum Topic
Auto has a good point.

Are you in rate or HH, when you initialize the gyro?

And are you adding trim in HH or rate?
Old Guys Rule!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-23-2009 06:56 PM  10 years ago
Amr

rrNovice

Alexandria - Egypt

MyPosts All Forum Topic
so i will switch on the Gyro in CMT mode and then change to normal , do the trim from the remote , move the switch 3 times in a second and then switch back the gyro to AVC or CMT mode .is that correct ?
sorry ,but this is my first time to build my heli from head to tail and this is the last touch to fly.
SHARE  PM  EMAIL  Attn:RR  Quote
04-23-2009 07:02 PM  10 years ago
Auto180_OCMA

rrApprentice

Futaba City Z (Mobara)

MyPosts All Forum Topic
YES now you got it
Best results from GY series is achived by trimming the tail in normal mode, then do it mechanically. After that you can use normal to fly it
staright and make sure you got 0 trim required. After that land the heli, memorize the trim and now you are ready for AVCS mode.

Or hover it, if you fly yet.

Hope that helps.
AMA 334000
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-23-2009 07:05 PM  10 years ago
Amr

rrNovice

Alexandria - Egypt

MyPosts All Forum Topic
i didn't add any trim , may be this is the mistake , it is not mentioned in the manual .

do you mean rates 0 and 1 or the gyro gain rate 70%
SHARE  PM  EMAIL  Attn:RR  Quote
04-23-2009 07:10 PM  10 years ago
Amr

rrNovice

Alexandria - Egypt

MyPosts All Forum Topic
Thanks , i will try it and let you know
SHARE  PM  EMAIL  Attn:RR  Quote
04-23-2009 08:32 PM  10 years ago
Amr

rrNovice

Alexandria - Egypt

MyPosts All Forum Topic
Hi Auto , how can i trim the tail mechanically .
SHARE  PM  EMAIL  Attn:RR  Quote
04-23-2009 10:08 PM  10 years ago
Auto180_OCMA

rrApprentice

Futaba City Z (Mobara)

MyPosts All Forum Topic
Ok you got it trimmed from the radio i m assuming
Once you have done that, make a note of the lever in back and the servo wheel.

Depending on how much trim you used, adjust the pushrod going to your tail with the ball link of the servo wheel.

Take the servo wheel of the servo. Zero your trim out. make sure that the servo and the ball link are in a 90 degree angle.

You should be able to put the bal link back on, at zero trim centered.

There are lot of otherways to do this. This is the way i ve been doing it for a long time and works for me.

The idea is to have ZERO trim on the rudder stick on the transmitter and have the servo wheel centered. How you get there is simple.

Hope that helps
AMA 334000
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-23-2009 11:08 PM  10 years ago
Amr

rrNovice

Alexandria - Egypt

MyPosts All Forum Topic
ok , i have done trimming from remote you are correct and now i have done it mechanically in normal mode tried to Hover but it is doing the same thing , tail is not locked .

i have fixed some tail crashes before and i never had this problem .
SHARE  PM  EMAIL  Attn:RR  Quote
04-23-2009 11:13 PM  10 years ago
Auto180_OCMA

rrApprentice

Futaba City Z (Mobara)

MyPosts All Forum Topic
What do you exactly mean by not lock
Is it hunting, drifting?

also please now this if you are in normal mode, the tail will not lock in place.

If you have it in AVCS mode, if its hunting lower your gain.

I m going flying you can PM me. i ll be back in few hours
AMA 334000
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
WATCH
 1 page 552 views POST REPLY
HomeRC & Power✈️Aircraft🚁HelicopterRadio - Servo - Gyro - Gov - Batt › create neutral position for GY611
 Print TOPIC  Make Suggestion 

 1  Topic Subscribe

Wednesday, September 18 - 7:00 pm - Copyright © 2000-2019 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online