Skip to main content
. 2020 Sep 25;6:226. doi: 10.1186/s40792-020-00993-9

Fig. 4.

Fig. 4

A PWC has a system in which the impeller is rotated by the engine, water is taken in from the intake port at the bottom of the hull, and the water flow is accelerated by a jet pump. If riders of PWCs fall backward off of the vehicle in a supine position with their legs splayed while the throttle is still activated, the water jets of the PWC will strike the perineum directly