Bobsled

[Amelia]

What does a bobsled "driver" do?

After he and his teammate(s) are in the vehicle, how can the driver affect the race?

 

[Moonglow]

weight displacement..

 

[Amelia]

Someone pointed me to a link saying that the driver steers with ropes.

How Do You Steer a Bobsled? An Olympic Equipment FAQ | Mental Floss