RunRyder RC
 3  Topic Subscribe
WATCH
 1 page 797 views
HelicopterThunder TigerOther › Why R50 Piro Stronger To The Right
12-03-2005 12:30 AM  12 years agoPost 1
ringram2077

rrApprentice

Birmingham, AL

My Posts: All  Forum  Topic

Hello
I have not been able to find this subject. I have two R50s, one w/TT50 and One w/OS50 Hyper. Using the 401/9254 combo both seem to piro stronger to the right vs. the left which is completely backwards !!!! This is driving me nuts. In FF the piro to the left is LAME, whereas the piro to the right is stronger. OK, before you ask the TR throw is the same in both directions. PLease help me before I loose my mind, what's left of my mind, he-he-he.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-03-2005 12:34 AM  12 years agoPost 2
ant_mb

rrElite Veteran

United States

My Posts: All  Forum  Topic

Did you check your EPA in the radio to make sure they are equal. This controls the piro rate on the 401.

Thanks
Anthony

PM  EMAIL  GALLERY  Attn:RR  Quote
12-03-2005 12:36 AM  12 years agoPost 3
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

My Posts: All  Forum  Topic

by design.......

more counter torque pitch (you can see this with an angle meter) built into the tail at extreme throws.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-03-2005 02:55 AM  12 years agoPost 4
ringram2077

rrApprentice

Birmingham, AL

My Posts: All  Forum  Topic

Yes, the end points are the same in both directions. The piro to the left is helped by the main rotor torque with is trying to move the nose to the left. Makes no sense to me, but i wonder how many folks flying the R50 would agree that the piro rate to the left is weaker than to the right.

Richard

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-03-2005 03:34 AM  12 years agoPost 5
3d type

rrVeteran

Bridgeport,CT USA

My Posts: All  Forum  Topic

i just increase the atv on the slower side to make them equal, works for me.

how'd the ground come up like that ?

PM  EMAIL  GALLERY  Attn:RR  Quote
12-03-2005 04:26 AM  12 years agoPost 6
TMoore

rrMaster

Cookeville, TN

My Posts: All  Forum  Topic

On mine they are pretty close to the same. The EPA's are probably within 8% of each other.

The gyro is probably not setup correctly.

What arm length servo arm?
What ATV's in the radio?
Are you using the gyro program in the 9C?
What tail blades?
What headspeed?

TM

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-03-2005 01:26 PM  12 years agoPost 7
ringram2077

rrApprentice

Birmingham, AL

My Posts: All  Forum  Topic

TM
Servo Arm is 14mm
On the 9C the endpoints are 105 and 105
Using the GY mode in the gyro menu
TR blades are the silver 80mm ones that Heliproz puts with the Hyper
Headspeed is 1850

I have some 92mm TR blades that I want to try. I read where this might help. But with the same throw in both directions it still does not make logical sense to me why it piros stronger better to the right that the left.

Thanks

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-03-2005 04:58 PM  12 years agoPost 8
TMoore

rrMaster

Cookeville, TN

My Posts: All  Forum  Topic

Bump the HS to 2K +/- 50 rpm.

Use the 90 degree Futaba arm and put the ball on the outer hole. It is the cross shaped arm.

Set the ATV on the gyro and run the ATV's in the TX to suit the piro rate.

On the surface it sounds like the gyro can't move the tail servo fast enough and you may not have enough servo arm length for the ATV that you are running.

The other thing that I do is to set some neutral bias on the servo so that the arm is exactly one spline forward toward the front of the machine. I usually do this as a last resort if a true 90 degree pushrod set up won't work for me.

TM

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-24-2005 11:12 PM  11 years agoPost 9
ringram2077

rrApprentice

Birmingham, AL

My Posts: All  Forum  Topic

Just some more info on the 611/9256. Sent it back to Hobby Services describing the problem and they sent a new gyro/servo. I'll get it back on the heli soon and see if anything is different. I will use a longer servo arm next time and set it up similar to the 401 except for the gain. I'll let you know how it goes.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-25-2005 08:29 AM  11 years agoPost 10
OICU812

rrMaster

Edson, Alberta, Canada

My Posts: All  Forum  Topic

I went out 19mm from center of horn, that worked great for me, no other adjustments to radio or gyro with 401 and 9354

...Once upon a time there were Nitros, flybars and frequency pins...

PM  EMAIL  GALLERY  Attn:RR  Quote
12-27-2005 07:48 AM  11 years agoPost 11
jadams

rrKey Veteran

East coast USA

My Posts: All  Forum  Topic

check out Raptortechnique.com. The site explains how to setup the tail piro rates and gyro.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-27-2005 03:10 PM  11 years agoPost 12
drdot

rrElite Veteran

So. California, Orange County.

My Posts: All  Forum  Topic

fwiw..

Silly question, but is the T/R rotation direction correct?

JOhn.

PM  EMAIL  Attn:RR  Quote
WATCH
 1 page 797 views
HelicopterThunder TigerOther › Why R50 Piro Stronger To The Right
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Thursday, December 14 - 1:23 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online