Hey
I have just started doing my ppl and just wanted to check if i have the concept of lift right. Is lift achieved by the venturi effect, where there is a low static pressure on top and a higher static pressure at the bottom of the wing. And it is the difference of pressure that creates lift?
Thanks
There are various theories to lift but yes, the most commonly accepted theory is the camber of the wing increases the speed over the top of the wing surface creating low pressure (suction if you like) whilst the slower speed of the air under the wing is at a relatively high pressure. The difference between them creates lift.
As you rotate the aircraft, and therefore increase the angle of attack (the angle between the chord line [line linking the leading edge to the trailing edge of the wing] and the relative airflow over the wing) the upwash ahead of the wing increases, air is sped up even more over the top of the wing, the pressure is even lower and therefore the differential is even greater so higher angles of attack (effectively high pitch angles) give higher lift.
The components of lift are Lift = 1/2 air density x velocity squared x coefficient of lift x surface area
Probably a little above PPL level but a bit of background info never hurts.
Hello there!
You're on the right track in understanding lift, but there's a bit more to it than just the Venturi effect. Lift is generated by the interaction of a wing (or airfoil) with the airflow around it. There are two primary theories explaining this phenomenon: the Bernoulli's principle and Newton's third law of motion. I'll give you a brief overview of each:
Both theories are interconnected and contribute to lift generation. So, in summary, lift is created by a combination of pressure differences (Bernoulli's principle) and the deflection of airflow (Newton's third law). Keep in mind that other factors like wing shape, angle of attack, airspeed, and air density also play a crucial role in determining the amount of lift produced.
I hope this helps clarify your understanding of lift. Good luck with your PPL journey, and feel free to ask if you have any more questions!
If the question and answers provided above do not answer your specific question - why not ask a new question of your own? Our community and flight simulator experts will provided a dedicated and unique answer to your flight sim question. And, you don't even need to register to post your question!
Be sure to search for your question from existing posted questions before asking a new question as your question may already exist from another user. If you're sure your question is unique and hasn't been asked before, consider asking a new question.
Flight Sim Questions that are closely related to this...