M/R & T/R Blade Terminology
Root – portion of blade attached to the hub
Span – distance from root to tip measured along center line
Tip – End of blade farthest from the hub
Chord – in a cross sectional view it is the imaginary line from the leading edge to the trailing edge
Trailing edge – aft edge of airfoil
Leading edge – forward edge of airfoil in terms of direction of rotation