A power driven vessel is often understood to be a mechanically driven boat. Human power as in rowing or wind driven power is not usually considered power driven.
stop rowing
The most people in a rowing boat is 8 not including the cox.
canoe and rowing boat
rowing/boat rowing
The smallest rowing sweep boat (one oar per person) is a pair with 2 people, one person rowing each side. The smallest rowing sculling boat (2 oars per person) is a single, one person rowing both sides. Source: I am a rower B)
If the boat has an oarsman...a Coxswain.
dinghy,rowing boat,liner,yacht,supertank
Rowing a boat increases friction. The oars create resistance against the water, which generates friction that helps propel the boat forward.
A power driven vessel is often understood to be a mechanically driven boat. Human power as in rowing or wind driven power is not usually considered power driven.
uncle
canoe