The Army's AH-1 Cobra was America's first attack helicopter that Bell created off the back of the UH-1 Huey. It has undergone ...

The final major variant, the UH-1H, arrived in 1967 with a 1,400-horsepower Lycoming T-53-L13 that allowed the design to carry 4,000 pounds of personnel or cargo as far as 285 miles without ...