Section 1, Page 17 (left column, second paragraph)
“Because some of the lift that keeping you up at altitude during a hover is now being applied to generate thrust for forward motion, you…”
should read as:
“Some of the lift that was keeping you up at altitude while hovering is now being applied to generate thrust for forward motion, so you need the rotor to generate more lift in order for the helicopter to avoid descending.”
Section 1, Page 18 (left column, first paragraph)
“rotor blades applies”
should read as:
“rotor applies”
Section 1, Page 25 (right column, last paragraph)
“Counter-rotating propellers and rotors can be positioned one above the other (“stacked”) or.”
should read as:
“Counter-rotating propellers and rotors can be positioned one above the other (“stacked”) or side-by-side.”
Section 1, Page 30 (left column, 3rd paragraph)
“increasing”
should read as:
“increase”