RunRyder RC
WATCH
 4 pages [ <<    <    ( 1 )     2      3     NEXT    >> ] 8054 views POST REPLY
HomeAircraftHelicopterHelicopter Main Discussion › Why real heli do not have flybar
04-11-2014 01:00 AM  4 years agoPost 1
Vaderluck

rrApprentice

Melbourne - Australia

My Posts: All  Forum  Topic

I am always wondering why real life heli does not use flybar.
I would not think it's fitted with gyro like 3GX, Vbar .... ???

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 01:09 AM  4 years agoPost 2
Retired2011

rrElite Veteran

Lee's Summit, MO

My Posts: All  Forum  Topic

Good question, we have a few Heli pilots and mechanics here so I'm sure one of them can help...

Jeff, do you have a contribution?

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 01:09 AM  4 years agoPost 3
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

My Posts: All  Forum  Topic

Search Bell Hiller and you will get a lot of info . Full scale don't fly inverted or make radical movements . You can fly RC without a flybar or a FBL unit and will fly similar to full scale .

I stole it ,flew it and gave it back ;)

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 01:11 AM  4 years agoPost 4
Retired2011

rrElite Veteran

Lee's Summit, MO

My Posts: All  Forum  Topic

You can fly RC without a flybar or a FBL unit and will fly similar to full scale .
That sounds quite challenging!

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 01:19 AM  4 years agoPost 5
Tyler

rrElite Veteran

Chicagoland area

My Posts: All  Forum  Topic

Flybars on models provide a mechanical advantage to help our once weak and slow servos. They also helped provide stability.

We have come a long ways, baby.

Many people fly No-Bar with great success. I hear it just doesn't feel as locked in and stable.

Enjoy things that money can buy IF you don't lose the things money can't buy.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 01:21 AM  4 years agoPost 6
Stephen Born

rrElite Veteran

USA

My Posts: All  Forum  Topic

Many full-scale helicopters do have flybars (Stabilizer bar).

PM  EMAIL  Attn:RR  Quote
04-11-2014 01:24 AM  4 years agoPost 7
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

My Posts: All  Forum  Topic

Yes ,a no bar back in the day is soft and not as connected but if you wanted the scale look you had no choice . FBL units have come a long way too , I had one of Mikados first , it worked well but was pricy and not compact like today's units .

I stole it ,flew it and gave it back ;)

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 01:49 AM  4 years agoPost 8
Craigdieslemac

rrKey Veteran

Valdosta, Ga USA

My Posts: All  Forum  Topic

Oh boy... Where to begin.... I have typed and deleted this about 10 times.. I the interest of spending time with the family and trying to help.. I offer up this link ...
http://en.wikipedia.org/wiki/Helicopter_rotor

Aut viam inveniam aut faciam

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 02:54 AM  4 years agoPost 9
AirWolfRC

rrProfessor

42½ N, 83½ W

My Posts: All  Forum  Topic

Why ? . . . Less parts to maintain or break.

You want a question ? . . .

Why is there a up-side-down airfoil on the tail boom producing down force on helis with a tetering head ?

And a right-side-up airfoil producing up force on a semi-rigid rotor head ?

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-11-2014 04:52 AM  4 years agoPost 10
es1co2bar3

rrKey Veteran

winnetka california

My Posts: All  Forum  Topic

Many people fly No-Bar with great success. I hear it just doesn't feel as locked in and stable.
I've done it B4 pretty scary stuff if you're the pilot that like to overacted on the stick it aren't ganna work for you.

I was waiting on some honey but there aren't no Queen bee,

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 06:08 AM  4 years agoPost 11
jhartsock3

rrApprentice

Greenwood, IN

My Posts: All  Forum  Topic

It also has a lot to do with the head most full scale are running multi bladed heads. If you had a 4 bladed head on yours you would have a pretty stable bird without the need for a flybarless system. Would just be that much more drag and strain on the system. Which is why most 3d helis only have 2 blades.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 06:12 AM  4 years agoPost 12
Gearhead

rrMaster

Vt

My Posts: All  Forum  Topic

I am always wondering why real life heli does not use flybar
while some fullsize do have flybars (like the old Hillers) other fullsize have a stabilizing bar instead of a flybar, many of these with the stabilizing bar will have the bar above the main blades, while the Bell 47 has the bar under the main blades

and, I would think for the most part why those fullsize helis that don't use flybars or stabilizing bar don't because those helis use hydraulic controls that stabilize the control system (not sure 100% tho)

Jim
Buzz Buzz Buzz

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 06:17 AM  4 years agoPost 13
Gearhead

rrMaster

Vt

My Posts: All  Forum  Topic

the Hiller with flybar

Jim
Buzz Buzz Buzz

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 06:24 AM  4 years agoPost 14
Gearhead

rrMaster

Vt

My Posts: All  Forum  Topic

Bell 47 head with stabilizing bar

Jim
Buzz Buzz Buzz

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 06:26 AM  4 years agoPost 15
UH-60PILOT

rrVeteran

Seoul, South Korea

My Posts: All  Forum  Topic

AirWolfRC, you used the terms teetered rotor head and semi-rigid rotor head in reference to right side up and upside down horizontal stabs on the tail like they were two different types of rotor systems when they are the same. Did you mean to say semi-rigid/teetered and articulated?

Kenny Thompson

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 06:34 AM  4 years agoPost 16
Gearhead

rrMaster

Vt

My Posts: All  Forum  Topic

the uh-1d huey head

Jim
Buzz Buzz Buzz

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 12:36 PM  4 years agoPost 17
philip 01

rrElite Veteran

ft worth

My Posts: All  Forum  Topic

Google SCAS system

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-11-2014 01:28 PM  4 years agoPost 18
Craigdieslemac

rrKey Veteran

Valdosta, Ga USA

My Posts: All  Forum  Topic

I cannot speak for all helicopters as my experience is limited to Sikorsky aircraft. We still have a system that stabilizes the aircraft using gyros and servos so it is just like a FBL controller, only on a larger scale.

Aut viam inveniam aut faciam

PM  EMAIL  GALLERY  Attn:RR  Quote
04-11-2014 02:34 PM  4 years agoPost 19
philip 01

rrElite Veteran

ft worth

My Posts: All  Forum  Topic

That is the case for the vast majority of full scale helis.

Stability augmentation system. Just like FBL.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-11-2014 03:22 PM  4 years agoPost 20
AirWolfRC

rrProfessor

42½ N, 83½ W

My Posts: All  Forum  Topic

It also has a lot to do with the head most full scale are running multi bladed heads. If you had a 4 bladed head on yours you would have a pretty stable bird without the need for a flybarless system. Would just be that much more drag and strain on the system. Which is why most 3d helis only have 2 blades.
Not true. The flybar serves two purposes that have nothing to do with number of blades, help stabilize the airframe in flight and help offset the nose up tendancy of forward flight. Even though I have not seen it done, a flybar could be fitted to a three or more bladed head.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
WATCH
 4 pages [ <<    <    ( 1 )     2      3     NEXT    >> ] 8054 views POST REPLY
HomeAircraftHelicopterHelicopter Main Discussion › Why real heli do not have flybar
 Print TOPIC  Make Suggestion 

 12  Topic Subscribe

Wednesday, October 17 - 10:48 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online