In full scale the flat spin is deadly for some
In one of my old Private Pilot(Ithink) mags - there was an article about a test pilot who was testing a canard - after dozens of attempts - he got it into the flat spin .
Next try to get it out
all std attempts failed - so he unbelted -crawled under the panel -no luck - opened the hatch - stuck one leg out on the forward plane- no help
belted back up and tried agin the std fixes - then he noted that the rate of descent was extremely low - much lower than ever considered possible in any engine off situation
so he rode it down into the pond
He got hurt but survived.
His take on it was that there was a rotational lift being formed which slowed the thing down.
Ok what's the textbook say about this "rotational" lift ?
I know for a fact I can get it to happen on my models as they are apparantly flat (fuselage in horizontal plane) and yet I can make em climb or drop --depending on power and elevator setting