Good day!
There is a famous design called the DS wing or poor man's wing known for it's simplicity and not requiring alot of gizmos. As you might know it's KFM2 airfoil, I decided to make mine Kfm4 as shown below.
My main question: do the steps always have to be as thick as the main wing? (5mm + 5mm+ 5mm = 15mm total thickness)... My kfm4 steps are 3mm each and the main foam wing is 5mm....so 11mm total as shown:
What are the pros and cons of keeping the steps slightly less? Is it going to sacrifice stability for less drag due to less total thickness, will it be the best of both worlds? And yes, I'm definitely going to bevel the leading edges for smoothie airflow. So I just need to know how it will affect by having kfm steps in general be less thick than the main wing.
Many thanks 😁
There is a famous design called the DS wing or poor man's wing known for it's simplicity and not requiring alot of gizmos. As you might know it's KFM2 airfoil, I decided to make mine Kfm4 as shown below.


My main question: do the steps always have to be as thick as the main wing? (5mm + 5mm+ 5mm = 15mm total thickness)... My kfm4 steps are 3mm each and the main foam wing is 5mm....so 11mm total as shown:

What are the pros and cons of keeping the steps slightly less? Is it going to sacrifice stability for less drag due to less total thickness, will it be the best of both worlds? And yes, I'm definitely going to bevel the leading edges for smoothie airflow. So I just need to know how it will affect by having kfm steps in general be less thick than the main wing.
Many thanks 😁
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