Sig Something Extra: right thrust or not?
 

I am working on a Sig Something Extra, and I am ready to start the fuse. The plans call for 0 degrees of downthrust and right thrust. However, I have read in some post that people build in some right thrust. At this point, I can easily do it, but
not sure if this is a good idea. I am planning to install something in the .55 range, and run a 11 in prop, and do mostly sport flying. I am not ready for 3D yet...
So what's your take? Also, I have not decided on an engine yet. I have a TT .46Pro but may get a new engine. Should I wait until I have the engine or can the fuse be built and the engine added later?

Thank you for you input.

RE: Sig Something Extra: right thrust or not?
 

I've had 4 of the SSE's and I built them all to the plan with 0 degrees of thrust. Never noticed any problems at with them.<div>
</div><div>Ken</div>

RE: Sig Something Extra: right thrust or not?
 

Unless it's built in by the designer I always build with zero thrust then during the trim flights if I need it I just make up a shim to put it in. I use washers at the field to find out how much is needed.

RE: Sig Something Extra: right thrust or not?
 

Thank you Ken. Did you lengthen the rudder and/or the elevator? I'd like to be able to knife edge...
Alberto

RE: Sig Something Extra: right thrust or not?
 

Off line thrust angles are to compensate for over powered air frames, where the engine is determining the flight characteristics of the model. I cannot remember the time that I have had to do that on any of mine, and I have built a LOT of scale planes.

Les