FSX Sukhoi Su-27B Update. This is an update of the Su-27B/UB/Su-30MKK package by Bill Wolfgen. The author has updated the flight dynamics, added the 4th wheel, given it a 2D panel, and changed the afterburner and smoke effects. You need the original aircraft for this update to work (SU27FLEX.ZIP). No VC. By Bob Chicilo.