4. In the early 1960's, this airline made the following statement in its timetable: "FAN JETS are up to 42% more powerful than ordinary jets. They take off in 1/3 mile less runway, climb up and over the weather quicker, even land in less space than ordinary jets." Identify the airline that made this statement and the specific aircraft type referred to.

It's the capitalized "FAN JETS" that clued me in to what I believe is the answer:

Northwest - "The FAN JET Airline" Depending upon how early in the 60s we're talking, I suspect the aircraft would have been Boeing's 707-351C and 720B. Later, the 727-51 would join the fleet.