You will need the following pieces:
-Dark Gray: 18
Step 1: The Engine
I found it easier if you first have the three connectors (white & yellow) all at one end, lay them onto the floor, and then push the gray rods down into them. When you are done, you can spread these connectors out.
Step 2: The Upper Part of the Fuselage
Step 3: Connect the Upper Fuselage to the Engine
Step 4: Finish Up the Fuselage
Step 5: Create the Tail and the Exhaust
Step 6: Connect the Tail to the Fuselage
Connect the yellow connector of the tail to the gray rod of the fuselage.
Connect the white connectors of the tail to the white rods of the fuselage.
Also, on the underside, connect the blue connectors of the tail to the orange connectors of the fuselage.
Step 7: The Wings
Step 8: The Nose - Part 1
Now connect the nose piece to the fuselage by inserting the gray rod of the fuselage through the orange connector of the nose-piece, and the white rods of the fuselage through the gray connectors of the nose-piece.
Also, connect a tan connector to the gray rod. This will prevent the red connector underneath from sliding to the side.
Step 9: The Nose - Part 2
Let the gray rod rest on top of the yellow connector. Do not connect them together.
Step 10: The Cockpit
Next, insert the blue rod of the cockpit through that red connector, and then connect the orange connector into that blue rod to close it up.
Finally, align the cockpit so that it stands up straight.
We're finished! Hope you had fun making this jet, and please remember to rate :D