Belly button glider - lift
How is it related to Aerodynamics?
You can learn and experience how a force of lift affects paper airplanes from this paper airplane. This paper airplane is probably the most balanced paper airplane which means that a center of gravity is located at the center of the paper airplane. So a weight force at the front section is almost same as the back section. Since it is the most balanced plane, you can curving down back of wings to see how a lift force affects it. You can compare a normal one and a paper airplane whose back of wings are curved down. If you curve down back of wings, a force of lift at back of wings will increase and back of wings will go up. Therefore, the paper airplane will nose-dive.
You can learn and experience how a force of lift affects paper airplanes from this paper airplane. This paper airplane is probably the most balanced paper airplane which means that a center of gravity is located at the center of the paper airplane. So a weight force at the front section is almost same as the back section. Since it is the most balanced plane, you can curving down back of wings to see how a lift force affects it. You can compare a normal one and a paper airplane whose back of wings are curved down. If you curve down back of wings, a force of lift at back of wings will increase and back of wings will go up. Therefore, the paper airplane will nose-dive.
Procedures
![Picture](/uploads/2/5/0/7/25079019/3152330.jpg)
Fold paper into half as shown in the picture.
![Picture](/uploads/2/5/0/7/25079019/886572.jpg)
Open up paper and then fold one side of paper as shown in the picture.
![Picture](/uploads/2/5/0/7/25079019/7275671.jpg)
Fold paper like the picture shows. Length can be optional but it shouldn't be too long or short.
![Picture](/uploads/2/5/0/7/25079019/6294896.jpg)
Fold paper like the picture shows.
![Picture](/uploads/2/5/0/7/25079019/5458603.jpg)
Do the same thing to the other side. Once you completed it, you see a triangle thing at center.
![Picture](/uploads/2/5/0/7/25079019/2740098.jpg)
Fold the triangle thing as shown in the picture.
![Picture](/uploads/2/5/0/7/25079019/5581931.png)
Fold paper as shown in the picture. The triangle thing has to face outwards.
![Picture](/uploads/2/5/0/7/25079019/7334494.jpg)
Make wings as shown in the picture. If you want it to fly longer, make wings longer and if you want it to fly faster, make wings shorter.