First
you'll draw the nose. Use the Arc
command, and make a curve (going from left to right) that
connects the top ends of the drawing. The midpoint
should be X=-0.25, Y=.0625. Then draw another one,
connecting the two lines, then type in
X=-0.25 , Y=.160. 
Next make a vertical line through
the center of the rectangle. Then draw four
horizontal lines through the rectangle as shown
below.

To finish the plan view, change the
line thickness to 0.1. Then make three vertical lines
0.0625 long, positioning them as shown by the highlighted
ones below. Change the thickness to 0.06. Then make
three more vertical lines each .125 long, and place them
4 grids below the last three lines you made.

That's it! Here's the final
plan view of the shuttle.

Click Next to go to the last step
and draw the front and side views.