ADVANCE Sigma 10 — A True C Without Stretching the Aspect Ratio

The Sigma 10 shows its worth in rough air, not on paper. It concedes half a step to the Cayenne 5 in weak thermals, but as soon as the air gets messy it opens the glide gap and climbs better. The price of freezing the aspect ratio at 6.1 was paid back in structure and C-control. That character is selective about conditions. On a calm evening flight, this wing rarely gets a chance to show what it is good at, and its directly connected brakes only earn their keep with a pilot who flies actively in turbulence. For a pilot who has decided to go out into a rough sky, the Sigma 10 repays that decision in performance.