Landing an Aeroplane Using Differential Pressure: A How-To Guide

  • Context: Undergrad 
  • Thread starter Thread starter spiffing_abhijit
  • Start date Start date
  • Tags Tags
    Differential Pressure
Click For Summary
SUMMARY

The discussion focuses on the principles of landing an aeroplane using differential pressure, emphasizing the balance between lift and gravity. During takeoff, lift must exceed gravity, while landing requires a reduction in lift to allow gravity to marginally overcome it. The aeroplane must maintain a nose-high attitude during both phases to generate sufficient lift. Commercial airliners utilize leading and trailing edge flaps, as well as slats, to enhance lift during landing, typically extending these features fully for optimal performance.

PREREQUISITES
  • Understanding of aerodynamics and lift generation
  • Familiarity with aircraft control surfaces, specifically flaps and slats
  • Knowledge of the principles of flight mechanics
  • Basic concepts of differential pressure in aviation
NEXT STEPS
  • Research the mechanics of lift and drag in aviation
  • Study the operation and function of leading and trailing edge flaps
  • Learn about the aerodynamic principles of slats and their impact on flight
  • Explore the effects of aircraft attitude on lift during takeoff and landing
USEFUL FOR

Aerospace engineers, flight instructors, pilots, and aviation enthusiasts interested in the mechanics of aircraft landing and the role of differential pressure in flight dynamics.

spiffing_abhijit
Messages
9
Reaction score
0
If an aeroplane takes off on the principle of differentiating pressure how does it land too safely in a horizontal way?
 
Physics news on Phys.org
Lift is always balanced by gravity. Upon takeoff, increasing the lift overcomes gravity. Upon landing, you reduce lift causing gravity to marginally overcome lift. The operative word here is 'marginally'.
 
Also note, the plane has to go nose-high on both takeoff and landing. It can't be completely horizontal and generate the required lift at takeoff speeds.
 
Some commercial airliners also have a way to extend the nose of the wing to create more lift on landings.
 
Yes, all commercial airliners have both leading and trailing edge flaps and some have slats (difference being with slats, the air flows between the slat and the wing as opposed to just being an extension of the wing). Typically, they are extended a quarter or halfway at takeoff and all the way at landing (a pilot can correct that for me...).
 
Aeroplanes don't land in horizontal...it is slightly higher in the nose part...
 

Similar threads

  • · Replies 46 ·
2
Replies
46
Views
5K
  • · Replies 69 ·
3
Replies
69
Views
5K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 32 ·
2
Replies
32
Views
10K
  • · Replies 19 ·
Replies
19
Views
2K
  • · Replies 35 ·
2
Replies
35
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 20 ·
Replies
20
Views
3K