RunRyder RC
WATCH
 1 page 720 views TOPIC CLOSED
HomeAircraftHelicopterAerial Photography and Video › Adding extra tail fin for addtional stability l
04-03-2009 01:24 AM  9 years agoPost 1
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

My Posts: All  Forum  Topic

I added a 2nd tail fin on my Razor 600E to maximize stability for photography. The lower fin is the original and the upper is what I added. It is at 45 deg angle but the photo doesn't show that. The idea is to add both vertical and horizontal damping to any tail movement. I saw this on another larger model and at the time I thought it really looks dumb, but now with only wanting to steady hoover it seems like it should help

Any comment ??? I am fairly flame proof, so fire away.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

PM  EMAIL  GALLERY  Attn:RR
04-03-2009 01:30 AM  9 years agoPost 2
Smithprod

rrVeteran

Oklahoma

My Posts: All  Forum  Topic

There's always a tradeoff when adding or taking away surface area. In this case your heli's probably going to be working it's tail off trying to hold in a crosswind.

Brad

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR
04-03-2009 01:43 AM  9 years agoPost 3
trackhead

rrKey Veteran

utah

My Posts: All  Forum  Topic

Ditch it, it won't help at all.

PM  EMAIL  Attn:RR
04-03-2009 02:04 AM  9 years agoPost 4
nocontrol1

rrApprentice

Melbourne, FL, USA

My Posts: All  Forum  Topic

I 2nd Trackhead's comment. The fin won't help stability in a hover. Maybe a little in FFF, but who needs it for AP? But then again... if you think it helps, nothing else matters!

Rob D.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR
04-03-2009 02:15 AM  9 years agoPost 5
borneobear

rrVeteran

Kuala Lumpur, Malaysia.

My Posts: All  Forum  Topic

I suppose it could help in visual orientation.

If it makes you happy, keep it.

PM  EMAIL  Attn:RR
04-03-2009 02:45 AM  9 years agoPost 6
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

My Posts: All  Forum  Topic

OK, thanks guys. I will probably remove it but first I will do a video test to see the diff with and without in the same low wind conditions. I'll let you know tomorrow, wind conditions permitting.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

PM  EMAIL  GALLERY  Attn:RR
04-03-2009 03:15 AM  9 years agoPost 7
Wayne Mann

rrVeteran

United States of America

My Posts: All  Forum  Topic

With todays heading hold gyros you are much better off with no fin at all, but you risk turning the tail rotor into a ditch witch. My aerial video machines have no vertical fins, but the tail rotor is way off the ground.

Wayne Mann

PM  EMAIL  GALLERY  Attn:RR
04-03-2009 05:25 AM  9 years agoPost 8
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

My Posts: All  Forum  Topic

Wayne Mann
Now thats a thought, eliminate the vertical fin and use a big horizontal fin. You guys are right, the vertical fin just makes more work for the gyro/servo in windy conditions. Im going to at lest take the covering off my vertical fin and let the holes do they're business.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

PM  EMAIL  GALLERY  Attn:RR
04-03-2009 07:55 AM  9 years agoPost 9
IKA photo

rrApprentice

Honolulu, HI

My Posts: All  Forum  Topic

A huge horizontal fin would create a lot of drag in your rotorwash tho.

PM  EMAIL  Attn:RR
04-03-2009 08:10 AM  9 years agoPost 10
CKY

rrVeteran

Sunshine Coast, BC, Canada

My Posts: All  Forum  Topic

BUT, visibility is always a key issue. I would keep it. Like others have said, the gyros really do their thing, with or without a tail fin.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR
04-03-2009 01:45 PM  9 years agoPost 11
Wayne Mann

rrVeteran

United States of America

My Posts: All  Forum  Topic

Actually I don't have horizontal fins on these models either as it would cause the amp drain to go even higher.

Wayne Mann

PM  EMAIL  GALLERY  Attn:RR
04-03-2009 04:12 PM  9 years agoPost 12
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

My Posts: All  Forum  Topic

The horz fin I will try will be out of the rotor was as it will be on on an extended boom about 10 inches beyond the direct rotor wash. Also the fin will be mounted on the tail rotor gear box, one side only obviously.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

PM  EMAIL  GALLERY  Attn:RR
04-04-2009 01:31 PM  9 years agoPost 13
xfc3dcd

rrApprentice

West Carrollton, Ohio usa

My Posts: All  Forum  Topic

A good HH gyro will work fine in light winds with or without a large vert fin. It will act as a damper and slow t/r response similar to reducing throws or using expo. In gusty winds it provides more surface area for the wind to push against and the t/r must work harder and so is less effective. It can help in fast forward flight to keep the tail in line but the main reason I use one is for improved visibility which is well worth the other compromises for me. I need weight on the tail to offset big cameras also so I have fins of varying weights to help balance CG. A bigger fin will also tend to vibrate more if something is not happy so it can be used as an indicator of sorts for troubleshooting.

Wendell

PM  EMAIL  GALLERY  Attn:RR
04-04-2009 02:25 PM  9 years agoPost 14
Wayne Mann

rrVeteran

United States of America

My Posts: All  Forum  Topic

What he said. ^^^^^^^

Wayne

PM  EMAIL  GALLERY  Attn:RR
04-04-2009 03:43 PM  9 years agoPost 15
500Driver

rrApprentice

Burlington, IA

My Posts: All  Forum  Topic

You could always make a 'fenestron' tail

When in doubt...auto out

PM  EMAIL  GALLERY  Attn:RR
04-04-2009 04:04 PM  9 years agoPost 16
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

My Posts: All  Forum  Topic

Thanks everyone for the suggestions and comments. Time to let this thread die to lessen the RR clutter. So I am closing.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

PM  EMAIL  GALLERY  Attn:RR
WATCH
 1 page 720 views TOPIC CLOSED
HomeAircraftHelicopterAerial Photography and Video › Adding extra tail fin for addtional stability l
 Print TOPIC  Make Suggestion 

 4  Topic Subscribe

Sunday, September 23 - 3:19 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