Science Buddies: Efficient Propeller Design

There's a lot to understand about the simple propeller to see how it affects lift and thrust in an airplane or helicopter. This Science Buddies project gives you lots of ideas on how to change the design of the propeller to achieve different results. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a section on terms, concepts, and questions, bibliography, list of materials and equipment, experimental procedure, suggestions on how to vary the experiment, plus a focus on the sort of careers this experiment might relate to.