The largest and most advanced US aircraft to see combat in WWII, the B-29 Superfortress was also the most expensive weapons system of the war, even exceeding the cost of developing the atomic bomb. Not surprisingly, the aircraft remained a part of the US arsenal in the following years and again saw combat in Korea. The evolution of the B-29 into the B-50 is covered in this book--the second of two volumes--as is the B-50's part as an early nuclear...