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11 results for “lift”

Formulae (11)

1RM = w\left(1 + \frac{r}{30}\right)

Estimated maximum single-lift weight.

V_{up} = \dfrac{F_{req} - F_{OB}}{\rho}

Fuel to be loaded: the required ramp/block fuel minus fuel already on board, converted from mass to volume using fuel density.

L = \tfrac{1}{2}\rho v^2 S C_L

Aerodynamic lift produced by a wing depends on air density, speed squared, area and lift coefficient.

D = \tfrac{1}{2}\rho v^2 S C_D

Aerodynamic drag force on the aircraft, analogous to lift with a drag coefficient.

V_s = \sqrt{\dfrac{2W}{\rho S C_{L,max}}}

Minimum speed for level flight, set by maximum lift coefficient.

GR = \dfrac{d}{h} = \dfrac{L}{D}

Horizontal distance traveled per unit of altitude lost equals the lift-to-drag ratio.

C_L = \dfrac{2L}{\rho v^2 S}

Non-dimensional lift, obtained by rearranging the lift equation.

C_{D,i} = \dfrac{C_L^2}{\pi e AR}

Drag due to lift, decreasing with higher aspect ratio and span efficiency.

s = \dfrac{V_{LO}^2}{2a}

Approximate ground-roll distance assuming constant acceleration to lift-off speed.

n = \frac{L}{W}

Ratio of lift to weight, felt as g-force.

V_s = \sqrt{\frac{2W}{\rho S C_{L,max}}}

Minimum speed to maintain lift.