The formula to calculate the Lift to Drag Ratio (LDR) is:
\[ LDR = \frac{L}{D} \]
Where:
The lift-to-drag ratio is a measure of the efficiency of an aircraft's aerodynamic design. It is the ratio of the lift force, which keeps the aircraft in the air, to the drag force, which opposes the aircraft's motion through the air. A higher lift-to-drag ratio indicates a more efficient design, as it means the aircraft can generate more lift with less drag.
Consider an example where:
Using the formula to calculate the Lift to Drag Ratio:
\[ LDR = \frac{5000}{1000} = 5 \]
This means that the lift-to-drag ratio for this example is 5.