The Grumman OV-1 is a very unique aircraft! It was the first turboprop aircraft to enter the US Army as a one-of-a-kind military observation platform. It first flew in 1959 and was instantly pressed into service. With a top speed of 305mph, range of 944 miles and huge canopy for observation directly below it, the Mohawk, also known as “the frog,” was a major player in the Vietnam War. There were four variances of the OV-1, this one is the OV-1B. The -1B variant had an 18 foot long side-looking radar mounted under its fuselage. To protect the OV-1B crew from small arms fire, it was equipped with armored cockpit and bullet-resistant windows and flak curtains. This is because it could cruise over a battlefield at 60kts! Three hundred and seventy-five were built by 1996 but today, fewer than 10 are airworthy.