SIG FourStar 60 Engine Thrust Offsets
 

Does anyone know if down thrust is required. The kit plans do not mention any and there appears to be no offsets with the firewall? I add right thrust as a matter of practice however, if it is not built in to the firewall.
Thanks for your help.
Bob Masterson
nauticom

SIG FourStar 60 Engine Thrust Offsets
 

Right thrust only on mine and it flies great.

SIG FourStar 60 Engine Thrust Offsets
 

I added a bit more right thrust with washers. Now the vertical is good and straight. I have a Saito 100 in mine.

--kaboomski;

SIG FourStar 60 Engine Thrust Offsets
 

I have a supertiger 91 on my FourStar 60 and it the best motor for the plane .It make it fun to fly!!!!!!!!!!!!!!!!!!!!!!! What motor are you going to use

SIG FourStar 60 Engine Thrust Offsets
 

I'm using a O.S. 91 Surpass 4S with pump. Plane flys very well.
Good kit overall.

Downthrust
 

I built a 4*40 a few years ago and added @ 2 degrees of down thrust. The airplane flew like C#!*! It required a large amount of up elevator trim to even get it to take off. It would not roll, and, naturally, would not fly inverted. :mad: