dc9 jan 26 example Mar 97 run 0.002376900 < Atmospheric density (slug/ft^3) 95000.0 < Weight of aircraft (lbs) 1000.0 < Wing area (ft^2) 2.000 < CLmax - maximum lift coefficient of the aircraft 0.30 < CLgrd - lift coefficient for ground run 1.6500 < CLair - lift coefficient for climb segment .080 < CDgrd - drag coefficient for ground run 0.121 < CDair - drag coefficient for climb segment .025 < MUgrd - rolling friction coefficient .3 < MUbrk - braking friction coefficient 0.0 < lambda - thrust deflection angle 1.1 < k - stall margin 3.0 < Time between engine failure and braking (sec) 35. < Obstacle height (ft) 2 < Number of engines 31450.0 29835.0 28475.0 < 3 thrusts (lbs) 0. 111.6 334.0 < 3 velocities (for thrusts) (ft/s) 3.0 < Time required for rotation 2 < Print flag