## What is lift distribution?

The lift distribution is usually presented in three forms: force distribution, section lift distribution, and a distribution of the fraction of section lift coefficients to the total lift coefficient generated by the wing. All have their advantages and shortcomings.

**Why is lift distribution important in the design of a wing?**

Wing lift distributions play a key role in wing design. The lift distribution is directly related to the wing geometry and determines such wing performance characteristics as induced drag, structural weight, and stalling characteristics.

### Where is lift generated on a wing?

Both surfaces of the wing turn the flow of air. The bottom surface deflects it (the air bounces off the wing), while the curved top surface bends it around (the air sticks to the wing). The turning of the flow is what gives you lift rather than just drag.

**Why are elliptical wings better?**

An elliptical planform is the most efficient aerodynamic shape for an untwisted wing, leading to the lowest amount of induced drag.

## Which part of the airplane creates the lift?

wings

Lift is generated by every part of the airplane, but most of the lift on a normal airliner is generated by the wings. Lift is a mechanical aerodynamic force produced by the motion of the airplane through the air.

**How is lift generated?**

In heavier-than-air craft, lift is created by the flow of air over an airfoil. The shape of an airfoil causes air to flow faster on top than on bottom. The fast flowing air decreases the surrounding air pressure. Because the air pressure is greater below the airfoil than above, a resulting lift force is created.

### How is lift generated by a wing?

“A wing lifts when the air pressure above it is lowered. It’s often said that this happens because the airflow moving over the top, curved surface has a longer distance to travel and needs to go faster to have the same transit time as the air travelling along the lower, flat surface.

**How do you find the maximum lift coefficient of a wing?**

The lift coefficient Cl is equal to the lift L divided by the quantity: density r times half the velocity V squared times the wing area A. The lift coefficient then expresses the ratio of the lift force to the force produced by the dynamic pressure times the area.

## What is lift coefficient in an airfoil?

The lift coefficient (CL) is a dimensionless coefficient that relates the lift generated by a lifting body to the fluid density around the body, the fluid velocity and an associated reference area. A lifting body is a foil or a complete foil-bearing body such as a fixed-wing aircraft.

**Why lift slope for wing is smaller than airfoil?**

For Example if the wing is at a geometric angle of attack of 5°, you are feeling an effective angle of attack which is smaller. Hence, the lift coefficient for the wing is going to be smaller than the lift coefficient for the airfoil.

### Which wing generates most lift?

Each wing was tested 20 times. It was concluded that Airfoil Three generated the most lift, with an average 72 grams of lift. Airfoil One generated the second most lift with an average of 35 grams. Airfoil Two was third with an average of 29 grams of lift.

**How is lift generated on an airplane?**

Airplane wings are shaped to make air move faster over the top of the wing. When air moves faster, the pressure of the air decreases. So the pressure on the top of the wing is less than the pressure on the bottom of the wing. The difference in pressure creates a force on the wing that lifts the wing up into the air.

## How is lift generated on an aircraft?

Lift is generated by every part of the airplane, but most of the lift on a normal airliner is generated by the wings. Lift is a mechanical aerodynamic force produced by the motion of the airplane through the air.

**How do wings create lift theory?**

The theory states that a wing keeps an airplane up by pushing the air down. Air has mass, and from Newton’s third law it follows that the wing’s downward push results in an equal and opposite push back upward, which is lift. The Newtonian account applies to wings of any shape, curved or flat, symmetrical or not.

### How does the lift of a tapered wing depend on the distribution?

The lift at each station along the wing is normalized by the same constant chord and dynamic pressure to get a lift coefficient, so the distribution scales by a constant factor when going from lift to lift coefficient. This is not the case for a tapered wing.

**How do you find the lift distribution on a straight wing?**

The lift distribution on a straight wing, accounting for the elastic twist, is found by introducing a relationship between incidence and lift distribution from aerodynamic theory. In the case of simple strip theory, the local wing lift coefficient, c1, is given by in which the distribution of elastic twist θ is known from Eq. (29.9).

## What is the distribution of lift coefficient on a constant chord wing?

On a constant-chord wing the distribution of lift coefficient has the same shape as the distribution of gross lift. The lift at each station along the wing is normalized by the same constant chord and dynamic pressure to get a lift coefficient, so the distribution scales by a constant factor when going from lift to lift coefficient.

**What is the local wing lift coefficient in simple strip theory?**

In the case of simple strip theory, the local wing lift coefficient, c1, is given by in which the distribution of elastic twist θ is known from Eq. (29.9).