Stepped Airfoils for Model Airplanes - Are They Better?
This video proposes that at low Reynolds numbers, stepped airfoils can be more efficient that smooth airfoils by reducing excess skin friction drag. A simple experiment is conducted using model free-flight gliders made from foam board to demonstrate that small model airplanes equipped with KFM-2 and KFM-3 airfoils have potential to fly significantly further than those equipped with smooth airfoils. Glider Build Video: • How to Build a Cheap and Easy Model Airpla... Timecodes: 0:00 - Intro 0:42 - Reynolds Number Recap 2:01 - Parasite Drag Recap 3:03 - Low Reynolds Numbers Explained 3:41 - Introduction to Stepped Airfoils 5:07 - Experiment Setup 8:25 - Conducting the Experiment 9:26 - Experiment Results 10:07 - Next Steps 11:35 - Conclusion
Parasite Drag Force Explained
How to Build a Cheap and Easy Model Airplane that Flies - Version 2.0
Induced Drag Force Explained
Lift Force Explained
What if sailing had no rules?
Once You Understand it, You Will Think Everything Else is Silly - Toyota E-CVT
How an Open Fan Differs from Turboprop & How it Beats Turbofans
The INVERTED V12 🤯 Why!?!? - 3D animation - DB 600 Engine // Daimler Benz
Is Airflow Distance Over the Top of a Wing Always Longer?
A Brief History of Closed-Wing Aircraft: Why Did Engineers Try to Bend the Wings Back?
E-Racer Blended Winglet and Interference Drag CFD Analysis
Reynolds Number Explained
Introduction to Glider Flight Physics and Maximizing Flight Distance
How Good Are Stepped (KF) Airfoils Actually?
How to fly 1000km in a glider
Toothless Gears Make Much More Torque Than Conventional Ones, Here's How. Cycloid Drive Explained
Creating the World's Most Efficient Drone
They Are ACTUALLY Building THIS!
How to Design Model Airplanes that Fly - Crash Course
