St_Marys_Lighthouse.ac alpha-test 0.01 rotate WV /environment/wind-from-heading-deg -1 0 0 1 0 0 0 rotate SeaGull /sim/time/elapsed-sec 15 0 0 0 0 0 -1 rotate SeaGull2 /sim/time/elapsed-sec 15 0 0 0 0 0 1