Aeronautical Engineering/Aerodynamic properties
Does a butterfly/"V" tail on an aircraft provide any form of lift (as pointed out in the attached photo)? There is no airfoil shape to them.
Even a flat plate can be used to produce lift (not very efficiently)... so certainly the V-tail will produce some lift (if put at angle of attack)... it will also create a fair bit of drag...
Think of a big sheet of plywood or poster board in the wind, it will definitely deflect the air in such a way as to create a lift force (it's just not that efficient at doing it, therefore it will also create a disproportionate amount of drag)