ReFRESCO has been used for the calculation of wind loads on ships super-structures already since 2009. Several Verification & Validation studies have been done for different types of ships and offshore platforms with increasing level of detail. The limits of steady approaches and of geometrical detail possible to capture accurately are now know. Not only loads have been validated but also velocity field behind structures (using PIV data), since shielding effects of one structure to others are of extreme importance. A summary of several studies done in the last years can be seen below.