31.   Regional jets of various makes and sizes are rapidly replacing turboprops throughout the regional airline industry.

32.   Q. What about buying the shares of regional airlines in hopes that they will be acquired?

33.   Regional airlines, which fly shorter distances in smaller planes, have historically experienced relatively more accidents than larger airlines.

34.   Right now, Delta has stakes in six regional airlines, including Comair Holdings Inc. in the Midwest and Skywest Airlines Inc. in the West.

35.   Smaller regional airlines still try to make flying fun.

36.   Some second-tier carriers offer low fares, others are regional airlines with fares similar to the majors.

37.   That makes the notion of spinning off regional airlines only more attractive, especially because Wall Street analysts began advocating just that.

38.   That has made it extremely difficult for regional airlines to establish routes to New York City, Washington and Chicago, all prime destinations for business travelers.

39.   The aircraft is operated by Crossair AG, a Swiss regional airline controlled by Swissair AG.

40.   The airline operates regional airline service under the America West Express, Mesa Airlines, United Express and USAir Express names.