Mountian folds are folds with two folds down and one fold up see oragami folding category see diagram under to left pionting up like a mountain or a inverted (V) shape in a triangular shape and angled strait across from [B1] IN A 52-0 DEGREE ANGLE SO PIONT (A) PERTRUDES UP HORIZONTALY
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[A]UP
__[B1]DOWN[B2]
In origami, there are two basic types of folds: mountain and valley. The only difference between the two is the direction that the paper is folded. In a mountain fold, the 'corner' created by the fold is pointed up, toward the folder. In a valley fold, this edge points down. So, if directions say to make a valley fold, the part of the paper being folded will be moved toward you, rather than away.
There are plenty of techniques to making a paper airplane! To get a simple, basic airplane, fold a piece of a4 in half to create a long, skinny piece. Then fold two adjacent corners inwards at right angles. Fold these right angles in towards the center line again to create 45 degree angles. Close the paper by its fold and fashion two wings out of the ends of the paper and Viola!
fold u must
aerodynamics
Step 1: fold paper in half then unfoldStep 2: fold top right corner and top left corner down to the middle creaseStep 3: fold paper backStep 4: on both sides of airplane, fold down the wings by folding the top of the paper down to the bottomThere's is a simple airplane. Yes it might not fly good but it's a simple airplane.
It's when you fold the paper in half down the center and when you stand the folded paper on a flat surface, it sticks up like a mountain!
this is a link to a very good airplane model. It will take a little bit of time to fold it 100% accurate but with a little bit of practice it is the best paper airplane. http://www.zurqui.com/crinfocus/paper/airplane.html
paper airplanes glide while most real airplanes have a source of propulsion also in a paper air plane you fold, it in a real airplane you weld it together
You will need 1 paper and fold it hotdog then do to flaps then seal it then make wings!!
A "Mountain" fold is not actually a special fold of any sort. It simply indicates the direction in which the paper is folded, and is the opposite of a "Valley" fold. Because of this, the nature of the fold depends on how you're looking at the paper. To see an example, take a piece of paper and fold it in half. Now set it down on a flat surface, with the two edges down and the new crease pointing upwards. You're now looking at a mountain fold. Now flip it over, so that the paper is resting on the crease (and perhaps tipping over), and the two sides are pointing upwards. You're now looking at a valley fold.
If you fold it into a paper airplane. Other wise the paper needs a ticket to New York or somewhere.The wind can make it glide somewhat also.
A paper airplane by ken Blackburn is the longest to stay aloftin 27.9 secs. but a walkalong glider flies long too but it is not a paper airplane because you still need to cut tape and fold.
One can make a toy airplane by purchasing or cutting out wood wings and a body. Then cut a slit in the two sides of the body and insert the wings. To make a paper airplane, simply fold the airplane in half, then fold the sides down at an angle to create the wings.