Well what words would we want whoop worshipers , wistfully wondering what wonderful wolloowing wobbly whale world of wrongness to wisper.
Works weally well.
Ducts , why , what , how.
Why is easy . So you dont hurt stuff.
What. There are 2 choices . propper ducts with close fitting blades or vanes , or prop guards.
How , how they work . Folks have said and i have noticed , throttle controll on ducted quads seems stuck and a little tricky to modulate smoothly.Aside from the coander effect , ducted fans produce thrust by acceleraiting the air through the duct , Props on the other hand are better at just grabbing the air and effectively pushing against it .
This is how i think it works.
Conclusion.
Chase quads = prop guards if anything.
Smooth steady slow = ducts.