The only American combat aircraft to see combat service in WWII, Korea and Vietnam. Powered by two Pratt & Whitney R-2800 air-cooled radial engines in a mid-mounted laminar flow airfoil wing. Pilot and bombardier/navigator were positioned side-by-side, while a single gunner sat in the rear behind the bomb bay where he operated two remote controlled twin .50-cal machine gun turrets. Over 200 photographs, color profiles, line drawings. 80 pages.