Sweep boats include:
                (Note: the stuff in brackets is the abbreviation used on race schedules)
        

bullet Pair (2-) - shell rowed by two athletes, each using a single oar.  The rower in bow seat steers the shell.

 

bullet Four (4-) - shell rowed by four athletes, each using a single oar.  The rower in bow seat steers the shell.

            OR

bullet Coxed four (4+) - shell rowed by four athletes, each using a single oar.  A coxswain steers the shell and calls the stroke.

 

bullet Eight (8+) - shell rowed by eight athletes, each using a single oar.  A coxswain steers the shell and calls the stroke.