round, spinning blades attached to a hub usually attached to an engine or motor blades may be made of metal or plastic blades may be curved or straight blades may be angled or twisted
propeller which has round, spinning blades propeller which is attached to a hub propeller which has usually attached to an engine or motor propeller which has blades may be made of metal or plastic propeller which has blades may be curved or straight propeller which has blades may be angled or twisted