ultramarin marine translations
ultramarin.online
nl pompen van het zeil
pompen met het zeil		   een zeil aanhalen zonder, bij maximale zeildruk, de hoek van het zeiloppervlak te veranderen;
de Pumpen des Segels
Pumpen mit dem Segel
Fächern 		ein Segel dichtholen, ohne bei maximalem Segeldruck den Winkel der Segelfläche zu verändern;  
en pumping of the sail
pumping with the sail
fanning 		the pulling on a sail that is unrelated to wind or waves. While a single 'pump' may be permitted , repeated pumping is prohibited by the regatta rules (ICSA, Art. 42).
Technically pumping is the pulling of a sail without changing the angle of the plane of the sail while at the same time making sure that there is always maximum resistance on the sail. (If the resistance decreases during the pumping stroke, it will indicate that the sail has become oversheeted. It helps if, prior to the pumping stroke, the sail is sheeted out beyond the zero angle of attack position and as it is pulled in it will increase the angle of attack and go through a little beyond the maximum. This will help to ensure that the pumping stroke is optimised.) 		 
fr pompage avec la voile    
es bombeo de vela
bombeo con la vela		    
it pompare della vela