This T-56 nacelleis formed with .030 thick plastic and measures 6 3/4" long 1 5/16 wide 2 1/2 " tall. Spinner size - 3/4 inch. this size should look right on a C-130 with a 4 ft. wing span.
The Nacelle comes in two halves and bonds useing model cement and a butt joint. Much like wheel pants are assembled.