4. Martin B-57 Canberra

Designed in the 1940s, modified during the 1950s, in service in the 1960s, and state of the art in the 1970s, the B-57 evolved to fill the gap between fighter planes and bombers. This high-speed model also served with the airforces of Taiwan and Pakistan and, in both cases as with those in U.S service, saw combat with distinction.