Hey guys; this weekend if the weather cooperates I am going to try to correct 
an issue that I’ve had for quite some time now. 

It seems that my elevator trim is not doing its job properly. Whenever I am 
flying by myself, the plane will nose over slightly when I release the stick, 
even with full up elevator trim.  When I have a passenger, and am approaching 
gross weight, the issue is still there but not nearly as bad due to the CG 
being further aft. 

I took a look at my trim last time I was up at the hangar, and even with full 
up trim, the trim tab moves a lot.  I understand it is supposed to move 
slightly as the elevator travels down and up, but this feels way more “loose” 
than anything; I can basically move the trim tab full deflection up and down at 
all times, even with full up trim.  

I was curious if anybody has had this same issue, and if so, is there an easy 
fix for it?  I’ve essentially just ran out of elevator “up” trim.  Would this 
just be a matter of tightening the trim tab cable so the trim tab is more 
sturdy, or is this something aerodynamic related to the Stock KR2S that would 
require major modifications? 

I do not mind having my hand on the stick the whole time, but my fear is if the 
elevator cables were to ever fail in flight, I would have zero redundancy for 
the flight controls. If my trim tab was adjusted correctly, and the cables were 
to fail, I could (in theory) use the trim tab to give me some influence of 
pitch and at least make an effort to get to a runway.   

Any help would be greatly appreciated.

For reference; 

-Stock KR2S; RAF48 airfoil. 

~650 lbs empty 

-Revmaster 2100D; battery forward of firewall

-CG is near the forward limit when completely empty.  

V/R

Sam Spanovich
N6399U
74S, Anacortes WA
_______________________________________________
Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/.
Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change 
options.
To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org

Reply via email to