Did You Know?  The McDonnell Douglas F-4 Phantom II was one of the largest postwar programs and was the first US Navy fighter to be adopted by the USAF. It could carry a bomb-load greater than the Avro Lancaster or Boeing B-29 Superfortress, and it served with twelve nations. Considered one of the greatest and most versatile (yet ugliest) jet fighters ever built, it was first in many areas of aerospace engineering innovations and would go on to break fifteen aviation world records.