If you want to take off, you need power. Look at a largish bird taking off, and ...

lutorm on July 25, 2011 | parent | context | favorite | on: It Flies: Da Vinci's Dream Comes True

If you want to take off, you need power. Look at a largish bird taking off, and then factor in the power/weight of the human body... you'll need to haul some ass.