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Fast, long range and landing gear-equipped, the Stratojet is a good interim paper airplane for anyone who already operates the Phantom, or who wants an excellent multi-role airplane.  

TAA USAF Designation: F201-1

Step 1: Materials

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1 Piece of 8.5 by 11 inch Paper

Step 2: Begin Folding

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Fold your paper along its length. Then pull the corner down to the center. Repeat on the other side.

Step 3: Nose Folding

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Pull the nose downwards along the bottom of the corner folds. Then pull the paper into the center again, although not completely so as to keep the nose blunt. These steps should make the paper resemble a Super Dart (http://www.instructables.com/id/How-To-Make-The-Super-Dart-Paper-Airplane/) in production.

Step 4: Open Your Folds

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Now open your paper back up to what it looked like at the end of Step 2, this time with several new creases. In reverse order of Step 3, undo all the folds you made there.

Step 5: Refold Along The Creases

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Fold your paper down along the creases created in Step 3, however, do not follow the fold lines as they were in Step 3.

Fold the "sweep" crease (as seen in Picture #1 here) down. Repeat on the other side. Then fold and flatten the "pocket" of paper down along the center line of the paper. When this is flattened, fold the "lock" under.

Step 6: Fold Your Wings

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From the front to the back, fold the wing root. It should only just cross over where the internal triangle is.

Step 7: Taping

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Tape the back of your Stratojet's fuselage together at its rear.

Step 8: Fold The Landing Gear

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Fold the landing gear up by folding the under wing flaps parallel to the fuselage. Unfold them when construction is complete. Then tape the landing gear to the bottom of the airfoil.

Step 9: Flight

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No different from most other darts in general, the Stratojet is a plane capable of high speed and long range. It is different however, in its ability to fly at slower speeds.

Like the similar Phantom, the Stratojet requires different launch techniques for different flight characteristics. At launch, give it a medium to high speed throw for maximum range and speed. For slow flight, only a medium speed throw is needed.

i am very confused. what is a sweep line?
The sweep line would be the term for what was the leading edge in the previous step.

I have added an image note to clarify this. If you need anymore help, please leave a comment.