The NK DoubleDart paper airplane has a special "doubled-over' design effect on the front, which not only adds an interesting aesthetic characteristic but also adds a more streamlined shape for the wings. This allows the craft to have a more smooth and accurate flight.
Following are the steps to build the airplane.
Step 2: Folds 1-5
Step 4: Pushing In The Back
-It makes the plane sturdier.
-It makes the plane more compact and aesthetically pleasing.
-It creates weight towards the back of the plane, causing the plane to naturally lift itself up into the air.
To do this, push the bottom of the back center paper up into and between the wings as shown. Try to make the fold even and symmetrical on both sides. Push in until the paper reaches the middle of the interior of the plane.