Without limiting the application of rule 42.1 , these actions are prohibited: basic 5 Pumping: repeated fanning of any sail either be pulling in and releasing the sail or by vertical or athwartship body movement. Pump 1 Pump 2 Pump 3 Pump 4 Pump 5 Pump 6 rocking; repeated rolling of the boat, induced by Rock 1 Rock 2 Rock 3 Rock 4 Rock 5 body movement, repeated adjustment of the sails or centerboard, or steering; Ooching: sudden forward body movement, stopped abruptly; Ooch 1 Ooch 2 Sculling: repeated movement of the helm that is either forceful or that propels the boat forward or prevents her from moving aster. Scull 1 Scull 2 Scull 3 WS case 8 repeated tacks or gybes unrelated to changes in the wind or to tactical considerations.