Question:  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?
Sentence (from "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.
Relevant evidence: Yes