![]() For more advanced students, these webpages on aerodynamics of model aircraft by Martin Hepperle will be useful. You'll definitely want to check out the Propellers section (among others) of NASA's Beginner's Guide to Aeronautics. Questions How do you think increasing the chord length will affect the efficiency of the propeller?īibliography Wikipedia is a good place to start for basic information on propellers: Wikipedia contributors, 2. Chord Radius Pitch Rotational speed (measured in revolutions per minute or RPMs) Airfoil Forces on an airplane in flight. Terms and Concepts To do this project, you should do research that enables you to. ![]() You'll monitor the voltage produced by the motor to determine the efficiency of the propeller. You will use the breeze from a household fan to make the propeller turn, which will cause the shaft of the motor to spin. The chord length, c, is the straight- line width of the propeller at a given distance along the radius. The drawing currently shows the ground clearance below the prop at 11.5'. The differentiation in the operator V is made with respect to the (jc, y, z). ![]() Propeller Slip-Stream Model in Subsonic Linearized Potential Flow Per Lotstedt*. Illustration of terms used to describe propellers. How does a helicopter generate enough lift to fly? How does a speedboat get moving fast enough to pull someone on water skis? Here's a project on designing propellers to do the job. ![]() Previous experience with aerodynamic design (e.
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