 Henry Eugene "Red" Erwin, Sr. is a recipient of the Medal of Honor which he earned aboard a heavy bomber whose design exceeded the cost of what?
Henry E. Erwin: Henry Eugene "Red" Erwin, Sr., (May 8, 1921 – January 16, 2002) was a United States Army Air Forces airman and a recipient of the U.S. military's highest decoration—the Medal of Honor—for his actions in World War II. Henry E. Erwin:  He earned the award as a staff sergeant and radio operator aboard a B-29 Superfortress in the Asia-Pacific theater. Boeing B-29 Superfortress: The Boeing B-29 Superfortress is a four-engine propeller-driven heavy bomber designed by Boeing, which was flown primarily by the United States during World War II and the Korean War. Boeing B-29 Superfortress:  Including design and production, it was the single most expensive weapons project undertaken by the United States in World War II, exceeding the cost of the Manhattan Project by between $1 and 1.7 billion.
the Manhattan Project