Aerowerx
Well-Known Member
I was curious about this shape, so I did a quick "build" in XFLR5.
Interesting.
Longitudinal behavior was quite good, but lateral was---let's say interesting!
Oscillations were about 4 per second, and damping was just slightly negative, which means it would eventually fly off into space. Essentially uncontrollable.
The over all dimensions were about the same as the "straight wing" models I have been playing with, so that leads me to believe that the straightness of the wings with sweep-back has a lot to do with the lateral stability.
Of course, I have not played with the parameters. Maybe I just happened to pick the wrong combination of aspect, sweep, area, etc.
Interesting.
Longitudinal behavior was quite good, but lateral was---let's say interesting!
Oscillations were about 4 per second, and damping was just slightly negative, which means it would eventually fly off into space. Essentially uncontrollable.
The over all dimensions were about the same as the "straight wing" models I have been playing with, so that leads me to believe that the straightness of the wings with sweep-back has a lot to do with the lateral stability.
Of course, I have not played with the parameters. Maybe I just happened to pick the wrong combination of aspect, sweep, area, etc.
