What type of aircraft is primarily used by Republic Airways?

Republic Airways primarily operates the Embraer E170 and E175 regional jets. These aircraft are well-suited for regional operations due to their size, efficiency, and capability to operate in smaller airports, making them ideal for the routes typically served by regional airlines. The E170 and E175 offer a balance of passenger comfort and operational efficiency, which aligns with Republic Airways' mission to provide regional jet services.

The other aircraft models listed, such as the Boeing 737, Airbus A320, and Boeing 787, are typically used by mainline carriers and are larger than what Republic Airways operates. While these aircraft are widely recognized and serve important roles in the aviation industry, they do not reflect the primary fleet of Republic Airways, which focuses on the regional market with the Embraer jets.