- This 4" X 6" print of a United States Army H-21 Shawnee helicopter has a military green frame that measures 6.5" X 8.5". Commonly called the "Flying Banana," the H-21 was initially developed as an artic rescue helicopter. The frame comes with a drywall screw for mounting on a wall and a dowel for displaying on a shelf or desk. Handmade in the USA by a Vietnam veteran owned company, it is a unique item for all aviation enthusiasts to display.