Attention: Student Infinite Flight Pilots
(Haven’t read the article)
Planes takeoff with windspeed, not ground speed
So when flying into the wind, they can achieve a higher wind speed with less ground speed, effectively using less runway, and vice versa
Edit: Am I a graduate now :3
Still haven’t read the article
One of the primary components of lift is the wind flowing around the wings. The concept of lift can be explained using bernouli’s principle which states that the shape of the wing causes low pressure on top of the wing and higher pressure below the wing which pushes the wing upwards as the airspeed around the wings increases.
A lot of people think that lift is caused by the speed of the aircraft on takeoff roll. This is only partially true. The speed of the aircraft is important indeed, but relative to the wind. This means that even if the wheels were moving at 180 knots but there is no wind around the wings, there is no lift generated. On the other hand, if the plane is moving only at about 130 knots but with a direct 20 knots headwind, your rotate speed is lower in terms of GS.
Airspeed, it’s what counts.
Taking off into a headwind gives you a higher airspeed and lower ground speed.
Taking off with wind on your tail gives you a lower airspeed and higher ground speed.
Pilot take up into the wind so they can get lift over the wings. The airspeed of the plane has nothing to do with how a plane takes off into the wind. The wind creates a high and low pressure over the wings and when rotation speed of the aircraft is reached that airplane becomes airborne
Beat me to it. Was about to post the same
Simple answer: More/Increased Lift
Co-efficient of lift equation
Cl=1/2 x Air density x Velocity Squared x Surface Area of wing.
Can’t change the air density, can’t change the surface area of the wing therefore you can only change the velocity.
If you do 100 kts with a 20 kt tail wind your ‘actual’ velocity would be 80 kts. = Inefficient
If you do 100 Kts with a 20 kt headwind your ‘actual’ velocity would be 120 kts = efficient.
Never throw away a free bonus! ;)
There is a physics person in the house (like me, good job).
(Did not read article.)
The faster the air flows over the wing, the more lift it makes. This makes it easiar to have a shorter take-off roll and faster climb rate.
This post is for people with no aeronautical knowledge. Pilots and all airmen this is basic knowledge. Please remember everyone is not a pilot or airman.
But it would be nice if you added a bit more information to your post. Maybe like why you wanted to share the link, why it might be important to us, what the article is describing…
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