The Boeing-Sikorsky RAH-66 Comanche was an advanced five-blade armed reconnaissance and attack helicopter designed for the United States Army.\rbr\rbrA great idea for the US military and the US army The Boeing-Sikorsky RAH-66 Comanche was an advanced five-blade armed reconnaissance and attack .\rbr\rbrThe Boeing–Sikorsky RAH-66 Comanche was an advanced five-blade armed reconnaissance and attack helicopter designed for the United States Army.\rbr\rbr\rbr\rbrBoeing Sikorsky RAH 66 Comanche. More tags: cristiano ronaldo amazing goal real madrid granada neymar jr amazing skills and goals.