The RAH-66 Comanche Stealth Helicopter Was an Expensive Boondoggle Billions of dollars went down the drain. Here's What You Need to Know: The Comanche was a poorly managed defense program. Pop quiz: what prominent U.S. military aircraft has a stealthy radar cross section and advanced networked sensors but has gone billions over budget and has fallen years behind schedule? While the F-35 stealth fighter might come to mind today, in 2004 the most timely answer might have been the RAH-66 Comanche. The slick-looking stealth helicopter spent twenty-two years in development, consuming over $7 bi...