The paper addresses a fluid-structure problem involving a trapezoidal ribbon which undergoes large static reconfiguration, yielding a drag force independent of the velocity over a sizable velocity range. With experimental reference data on shape and drag available in the literature, the paper reports on Large Eddy Simulations of the configuration providing ample information on the surrounding transitional flow field and the distribution of forces along the structure. To obtain these results, a new implementation of a Cosserat solver was developed permitting non-constant properties along the structure.