Drogue for sport bats and clubs

摘要

A drogue chute for increasing aerodynamic resistance against the movement of a swinging sport implement such as a bat, racket or club. The drogue includes a canopy that attaches to the sport implement by suspension lines. When the sport implement is swinging, the canopy inflates to create a relatively high aerodynamic drag. The drogue may also include a break-away fastener. When the fastener is connected, the canopy is reefed so that the drogue provides relative little aerodynamic drag to the sport implement. When the sport implement reaches a sufficient speed, the fastener disconnects allowing the canopy to inflate thereby providing a sudden increase in aerodynamic resistance.