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I need help with figuring out how two different types of wings would work for two different types of human-like creatures. This includes how they would fly [flapping, wing length, other things that must be changed about the body to compensate for the effort.]
The first type is sort of like a dragon turned into a human. They have scales, along with webbed wings on their backs. The second has wings in the same position, but are closer to humans in design. They have feathered wings.
So, my questions are these: How long would wings have to be in comparison to the body? How would flying mechanics work? How would the body structure have to be different than a human's?