John, the airplane is a 1977 Maule M5-210C. Stol airplane built in Moultrie Georgia. Has a 210 HP fuel injected Continental 6 cylinder engine. Maule Aircraft is a family owned company and has been making similar airplanes since 1965.
We had a good variety of tractors and dozers. Not shown in the pictures is a Cat 60 pulling about a 8 foot drag type disc. He alternated with RD-4 on the disc. I had my Case 900 with 4-16 Case plow. No driver, so was not in the pictures from the air.
Gene