Go Back  RCU Forums > RC Airplanes > Beginners
 SkyFly 2 Issue with Climb >

SkyFly 2 Issue with Climb

Community
Search
Notices
Beginners Beginners in RC start here for help.

SkyFly 2 Issue with Climb

Thread Tools
 
Search this Thread
 
Old 04-27-2009 | 02:20 PM
  #1  
Thread Starter
Junior Member
 
Joined: Apr 2009
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
From: , OH
Default SkyFly 2 Issue with Climb

I'm having an issue with my SkyFly 2. I have 18 or so successful fights with it; however recently I'm having an issue where it will not take off from the ground. If I hand launch. It has a tendency to nose dive; however can remain airborne with full up elevator. Even at this turning becomes an issue because it tends to drop even more in the turns. It will climb with the wings level and full elevator, but nothing like my past flights. I have balanced it according to the instructions and if anything has more tail weight. I have replaced the wing and both rear stablizers and still the same issue. I have also checked the motor and the screws where loose; however, this does not appear to fix the issue. Both the rudder and elevator are centered just like the past flights. My past attempt I fixed the elevator about half full up by changing the position on the control rod. This did create a more stable flight; however, I'm looking for a better fix.

I have a lot of time on simulators and do pretty good in the air. I'm working on take-offs and landings and now this issue is driving me nuts. I'm guessing there is a drag some place just don't have any idea where.
Old 04-27-2009 | 03:01 PM
  #2  
bigedmustafa's Avatar
My Feedback: (2)
 
Joined: Jun 2005
Posts: 4,110
Likes: 0
Received 0 Likes on 0 Posts
From: Omaha, NE
Default RE: SkyFly 2 Issue with Climb

Stick-and-Pod type electric planes tend to have this problem if the fuselage stick is starting to angle downward slightly. This creates negative incidence on the tail surfaces and makes it very challenging to maintain level flight.

If this is the case, you will either need to find a way to correct the negative angle of the fuselage stick relative to the front pod, or replace them both with new spares. Please see my highly detailed diagram below.

Attached Thumbnails Click image for larger version

Name:	Xv65396.jpg
Views:	32
Size:	10.5 KB
ID:	1187995  
Old 04-27-2009 | 03:45 PM
  #3  
Lnewqban's Avatar
 
Joined: Apr 2007
Posts: 4,057
Received 0 Likes on 0 Posts
From: South Florida
Default RE: SkyFly 2 Issue with Climb

Exactly!

Somehow, the angle between wing and tail have changed, I believe.

These articles explain about it, how to fix it, and how to re-trim with a glide (non-powered) test.

http://www.fatlion.com/sailplanes/decalage.html

http://tpbweb.com/media/catalog/610.pdf

The manual calls for CG to be between 1-5/16" and 1-13/16"; check that it is correct and glide test your model.

If it glides well, it will fly perfectly!
Old 04-27-2009 | 09:30 PM
  #4  
Thread Starter
Junior Member
 
Joined: Apr 2009
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
From: , OH
Default RE: SkyFly 2 Issue with Climb

Thank you both for the reply. I did notice that the stick was able to break free from the fuselage mount. This has been corrected. I'm not sure that is my issue, but cannot be sure till I get it in the air.
Old 04-29-2009 | 09:52 PM
  #5  
Thread Starter
Junior Member
 
Joined: Apr 2009
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
From: , OH
Default RE: SkyFly 2 Issue with Climb

Took it out for a flight today and this did help. It was a bit windy so not ideal conditions for a flight; however, was able to keep it airborne with little effort. Might still have a slight nose down tendency but I'll trim it out more. Thanks for the help...
Old 04-29-2009 | 10:07 PM
  #6  
Lnewqban's Avatar
 
Joined: Apr 2007
Posts: 4,057
Received 0 Likes on 0 Posts
From: South Florida
Default RE: SkyFly 2 Issue with Climb

You are welcome!

Glad it is flying better.

If too much trimming up of the elevator is still needed and the stick cannot be bent, you could try some 1/32" shims under the leading edge of the wing, until it glides OK.

Have fun!

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.