Why do you need to take a breath first when you have a paper airplane?

There is a debate on this issue, and the opinions can actually be summarized as the following points, which are all quite reasonable

1.

2. to make the plane smooth

3. to increase the weight of the head of the plane

there are actually

4. to blow off the confetti generated by the folding

5. to blow air into the wing, so that it is more close to the lifting wing

Ha breath in the head of the paper airplane role is currently heard there are a number of one of the paper aircraft is often due to the folding line of the leading edge of the concentration of some of the slightest confetti. One is that the leading edge of a paper airplane often has some fine confetti due to the concentration of the fold lines, and the air is blown out to remove the confetti for smooth flight. Another theory I heard seems to be applicable only to certain conditions, i.e., "blowing the air into the paper airplane" causes it to expand to become more similar to the streamline shape with a thicker front and a pointed back, so that it can gain more lift during gliding, and thus be able to glide for longer periods of time.

Guinness Book of World Records holder Ken

Blackburn writes about paper airplane flight dynamics (PAPER

AIRPLANE

AERODYNAMICS)

http:// In paperplane.org/Aerodynamics/paero.htm

It is argued that paper airplanes have unnecessary tails. Using the B-2 Stealth Bomber as an example, he mentions that the counterweights along the wings bring the center of gravity further forward, so the plane is smoother, and that paper airplanes have the same principle.

When the center of gravity of a paper airplane falls in front of its Neutral

Point, the airplane will be stable, and if it falls behind the Neutral Point, the fuselage will be unstable, and the Geometric Center of Gravity (GCG) for a delta-winged paper airplane will fall about 1/2 of the fuselage, and that for a quadrilateral-winged paper airplane will fall 1/4 (Section 4-2) of the fuselage, and that for a quadrilateral-winged paper airplane will fall 1/4 (Section 4-2) of the fuselage. 4 (section 4-2).

So for a paper airplane to be stable, you must either stack the weight of the paper airplane forward, or

like everyone else, add weight to the nose by puffing on the nose of the paper airplane before it is thrown to shift the center of gravity forward.

In that article, 4-2, he mentions that sometimes he also clips a crankpin to the front of the nose to add weight to the front and improve stabilization, but that this also adjusts the tailplane warpage.

Since paper airplanes fly far

nearer depending on how stable the plane is, people want the center of gravity of the plane to move forward, and that's the reason people huff and puff.

I hope my answer is helpful

Also feel free to follow up