We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

How do Airplanes Stay up?

Nicole Madison
Updated May 23, 2024
Our promise to you
WikiMotors is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WikiMotors, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Though airplane flight may appear miraculous, there is science behind it. Airplanes stay up in the air because of the aerodynamic force referred to as lift. Airplane lift, generated by each part of an aircraft, is a force that works in direct opposition to the weight of an aircraft. It has to do with the movement of air, which is typically referred to as a fluid in aerodynamic descriptions. This fluid acts on the plane to allow it to rise into the air and stay there, as long as several conditions are met.

Lift is present when a solid object deflects or turns a moving flow of fluid. Flow turns in one direction, while lift is produced in the opposite direction. Solid surfaces of all types are able to cause the flow to turn aside, ensuring that airplanes stay up in the air. For example, both the upper and lower portions of an airplane’s wing surface are important in deflecting the flow of fluid.

Motion is also vital in ensuring that airplanes don’t come crashing down. Without movement, lift is not generated. There must also be a velocity difference between the plane and the fluid. Airplane lift is generated perpendicular to motion, so as the plane moves forwards, lift is generated upward. Motion does not act alone when airplanes fly through the sky, however; drag opposes motion, contributing to the science of flight as well.

Besides lift, motion, and drag, weight and thrust are also important in making sure airplanes stay in the sky. The weight of an airplane is spread out, keeping it balanced. It is this force that pulls a plane toward the ground. Thrust, provided by the airplane’s engines, moves it forward and drag slows it down. Without these forces, each working in its own way, an airplane could not fly.

WikiMotors is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Nicole Madison
By Nicole Madison
Nicole Madison's love for learning inspires her work as a WikiMotors writer, where she focuses on topics like homeschooling, parenting, health, science, and business. Her passion for knowledge is evident in the well-researched and informative articles she authors. As a mother of four, Nicole balances work with quality family time activities such as reading, camping, and beach trips.
Discussion Comments
By anon306902 — On Dec 02, 2012

The Coriolis effect explains why planes fly in curved paths.

By anon189352 — On Jun 22, 2011

I agree with Posts 2 and 7. That the wing's shape creates lower density of molecules on top of the wing and higher density on the top.

By anon168481 — On Apr 17, 2011

I like a challenge. Having no understanding of physics, whatsoever, I do know how lift is created. It's basically the same explanation as post number 2, except I think I'll give a better visual.

Picture a wing from the side. While the front of the wing cuts the airstream in two, the curvature of the wing makes the molecules on the underside of the wing travel a shorter distance to reach the other end. The ones that flow over the top of the wing travel a longer distance over the wing to end up at the same point as the ones on the bottom.

The molecules over the wing are thinner spread because of this, or one could also say that the molecules under the wing are packed denser. De denser packed molecules can bear more weight, and are able to lift the moving wing.

This only works if the wing moves. The faster the motion, the bigger the capacity to lift. Hence: airplanes are both fast, and have big wings. The bigger the wings, the faster the plane needs to be.

By anon119156 — On Oct 16, 2010

OK, so if lift is caused by the fluid air being redirect perpendicular to the plane in a downward motion then it still doesn't explain why a plane can stay in the sky. Wouldn't the top of the plane deflect air perpendicularly up? wouldn't this counteract the force of the air deflecting down?

And for the pressure/wing shape explanation well, the Wright brothers flew a plane with wings that were the same shape on both sides. so what happened there? Or the fact that planes going fast enough can fly upside down. How does that happen?

By anon89731 — On Jun 11, 2010

Going to make this post short. Comment #2 below gives the most common but incorrect or incomplete explanation of what creates lift on a wing.

The discussion of the Bernoulli principle is all correct, however only plays a small part in creating lift. It is actually Newton's third law of motion that states for every action there is an equal and opposite reaction. Simply put, a wing (airplane, bird, rotor, etc.) redirects or pushes air down and the opposite reaction is the wing goes up!

Maybe the best way to envision this is to stand underneath a rotary wing (helicopter) and the huge amount of air being "pushed" down. The opposite reaction is up!

By anon81801 — On May 03, 2010

Just look up 'drag.' there are plenty of definitions available.

By anon74669 — On Apr 03, 2010

Wanted to teach the kids this - need someone to teach it to me first!

By anon59653 — On Jan 09, 2010

Bernoulli's Principle states that fluid (air) moving rapidly creates less pressure than slower moving fluid (air).

The design of the aircraft wing forces the air (fluid) over the top of the wing to move faster and therefore creates less pressure on the wing. The air underneath the wing has more pressure and pushes up- therefore "lift" has occurred.

Simple, really. For an example you can do at home, take a sheet of paper and hold it flat in front of you, blow across the top of it and you will see the paper rise up.

By anon57421 — On Dec 22, 2009

i love the brevity of wise geek explanations, but i just have to say that this one sucks! what on earth is drag? i think this could have been explained with a lot less jargon.

Nicole Madison
Nicole Madison
Nicole Madison's love for learning inspires her work as a WikiMotors writer, where she focuses on topics like...
Learn more
WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.

WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.