# How Do You Calculate Lift Force on a Banked Airplane?

• Visual1Up
In summary, Mike is looking for the formula to find the lift force on a banked airplane. The formula he is aware of is Fc = Fn sin theta. However, he is unsure of which forces and components are keeping the plane from moving vertically.
Visual1Up
Need some suggestions...

I have a banked airplane at theta degrees, with a radius, and velocity. What is the formula for finding lift force. Fc = Fn sin theta I believe, but that's the only formula I am aware of. Thanks!,
-Mike

Visual1Up said:
Need some suggestions...

I have a banked airplane at theta degrees, with a radius, and velocity. What is the formula for finding lift force. Fc = Fn sin theta I believe, but that's the only formula I am aware of. Thanks!,
-Mike
The plane has centripetal acceleration in the horizontal direction. The pilot keeps the plane banked at just the right angle to keep the plane from slipping and maintain a steady altitude. Which forces, and which components of those forces, are keeping the plane from moving up or down?

Hi Mike, thank you for your question. The formula you mentioned, Fc = Fn sin theta, is correct for finding the lift force on a banked airplane. This formula is known as the "lift equation" and is based on the principles of aerodynamics. It takes into account the angle of bank (theta), the normal force (Fn) acting on the airplane, and the lift coefficient (Fc), which is a measure of the efficiency of the airplane's wings in generating lift.

However, there are also other factors that can affect the lift force on a plane, such as the air density, airspeed, and the shape and size of the wings. These can all be accounted for in more complex equations, such as the Bernoulli's equation or the Navier-Stokes equations.

As a scientist, it is important to consider all of these factors and use the appropriate equations to accurately calculate the lift force on a plane. I would also recommend conducting experiments or simulations to validate the results obtained from these equations. I hope this helps and good luck with your research!

## 1. What is lift force?

Lift force is the upward force that is generated by an airplane's wings as it moves through the air. It is what keeps the plane in the air and counteracts the force of gravity.

## 2. How is lift force created?

Lift force is created by the shape of the airplane's wings, specifically the curvature on the top surface of the wing. This shape causes air to flow faster over the top of the wing, creating an area of lower pressure above the wing and higher pressure below it, resulting in lift force.

## 3. What factors affect lift force?

The main factors that affect lift force are the speed of the airplane, the angle of attack (the angle at which the wing meets the oncoming air), and the shape and size of the wing. Other factors such as air density, temperature, and altitude can also have an impact.

## 4. How does lift force change during flight?

Lift force is not constant during flight and can change depending on the angle of attack and speed of the airplane. As an airplane takes off and gains altitude, the angle of attack decreases, resulting in a decrease in lift force. Similarly, during descent, the angle of attack increases, causing an increase in lift force.

## 5. Can lift force be greater than the weight of the airplane?

Yes, lift force can be greater than the weight of the airplane. In fact, in order for a plane to take off and stay in the air, the lift force must be greater than the weight. However, during level flight, the lift force is equal to the weight, creating a state of equilibrium.

• Introductory Physics Homework Help
Replies
7
Views
283
• Introductory Physics Homework Help
Replies
2
Views
972
• Introductory Physics Homework Help
Replies
7
Views
1K
• Introductory Physics Homework Help
Replies
32
Views
1K
• Introductory Physics Homework Help
Replies
56
Views
2K
• Introductory Physics Homework Help
Replies
7
Views
3K
• Introductory Physics Homework Help
Replies
14
Views
4K
• Introductory Physics Homework Help
Replies
5
Views
2K
• Introductory Physics Homework Help
Replies
20
Views
2K
• Introductory Physics Homework Help
Replies
14
Views
1K