F-105-Thud Ridge. Created by Peter van Stigt, This image is 7x10 @ 72 ppi. Printable (PDF) files for this image, up to 12x17 inches @ 300 ppi, are available by contacting afgraphics@dma.mil. This image is copyrighted and is the property of Peter van Stigt and is available only to members of the armed forces and military organizations.