The "-1" variant is heavier and has a larger wing for long, smooth flights--making it a great cruiser. The "-2" variant, on the other hand, is lighter and has a smaller, tapered wing for speed and agility--making it an excellent choice for a small stunt plane. Due to their great commonality, a "-1" can be converted into a "-2" with a few cuts and the removal of one staple.
TAA USAF Designation: D146-1 (Straight wing with leading edge extensions)
D146-1G (A "-1" with landing gear)
D146-2 (Tapered wing)
Step 1: Materials
1 Piece of 8 by 10.5 inch graph paper (4 boxes per inch)