Go Back  RCU Forums > RC Airplanes > ARF or RTF
 Ultra R/C katana elevator too snappy- help? >

Ultra R/C katana elevator too snappy- help?

Community
Search
Notices
ARF or RTF Discuss ARF (Almost Ready to Fly) radio control airplanes here.

Ultra R/C katana elevator too snappy- help?

Thread Tools
 
Search this Thread
 
Old 04-19-2005 | 12:19 PM
  #1  
Thread Starter
Senior Member
My Feedback: (37)
 
Joined: Jun 2003
Posts: 772
Likes: 0
Received 0 Likes on 0 Posts
From: waukesha, WI
Default Ultra R/C katana elevator too snappy- help?

Flew my Ultra R/C katana for the first time the other day. It flies great, although the elevator is very, very snappy. Even with very low rates on, it tends to snap to the right. In fact, I almost lost the plane while pulling out of a spin because it snap rolled while pulling out of the dive.

The plane balances at the recommended CG, so I don't think its tail heavy.
The only thing I can think of is there is too much play in the elevator controls using the stock wooden dowl and Y wire. I thought of maybe somehow mounting two elevator servos in the rear of the fuse to do away with the stock elevator setup.

I am wondering if anyone has had experience with their Ultra Katana and would like to offer suggestions.
Old 04-19-2005 | 02:06 PM
  #2  
Senior Member
 
Joined: Aug 2003
Posts: 731
Likes: 0
Received 0 Likes on 0 Posts
From: hingham, MA
Default RE: Ultra R/C katana elevator too snappy- help?

what is the lateral balance likeand how does the tail surface compare to the wing surface. do the line up? when you look at the tail does is it inline with the wing or does one drop more then the the other
Old 04-19-2005 | 05:28 PM
  #3  
Thread Starter
Senior Member
My Feedback: (37)
 
Joined: Jun 2003
Posts: 772
Likes: 0
Received 0 Likes on 0 Posts
From: waukesha, WI
Default RE: Ultra R/C katana elevator too snappy- help?

tail is inline with the wing. I checked the lateral balance and it is right side heavy. I guess I forgot to check that. That is the side that the plane snaps towards when using elevator. Is this the cause of my elevator problems?

The other area I thought might be contributing is in the stock wooden dowl and split Y wire elevator setup. I was never really impressed with those in any plane. When I grab the elevator halves and move them. I can shift the wooden dowl around inside the fuse without moving the servo. I am wondering if this is part of the problem, although every other plane I have owned with this type of elevator setup has also had this "play" in the wooden dowl.

Thanks. Steve

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.