Keywords: Dassault Étendard IV prototype in flight c1959.jpg A French Dassault Étendard IV prototype in flight U S Navy Naval Aviation News October 1959 http //www history navy mil/nan/backissues/1950s/1959/Oct59 pdf p 24 1959 USN PD-USGov-Military-Navy Dassault Étendard IV Prototype aircraft |