UP Summit XC 4 — An AR 6.3 High B You Fly Like a C

Two kinds of pilot fit the Summit XC 4. One has flown a high B for a season or two in varied conditions and wants a higher aspect ratio without leaving the B class. The other already flies C wings and takes the B rating as peace of mind. For the pilot stepping up from a high B, the extra glide efficiency on long XCs comes with more work keeping the wing in check in rough air.