The Beechcraft C90 is a graceful twin-engine turboprop that has proven a versatile aircraft throughout its decades of service. It remains a popular airframe as a corporate transport, air ambulance, scientific research, cargo transport, and various military applications.

Some may be surprised to learn that the Beechcraft model 90 has been gracing the skies for 63 years. Development of the aircraft began in 1961 and was based on the Queen Air, but incorporating Pratt & Whitney PT6A-6 turboprop engines. The first prototype flew in January 1964 with 152 being ordered by October. The model A90 was introduced in 1966, incorporating the PT6A-20 turboprops, with production shifting to the model B90 in 1968. Orders for the aircraft included military and civilian.

The model C90 was introduced in 1971 and incorporated an increased wingspan and takeoff weight. The model C90-1 (1982) and C90-A (1987) introduced numerous upgrades to the aircraft’s systems, including hydraulic landing gear and a triple-fed electrical bus. In 1992 the C90B was introduced with improvements to the airframe, PT6A-21s turboprops, four-bladed propellers, and propeller synchronization.

The C90B has a crew complement of two and can seat five passengers. The aircraft is capable of operating out of smaller airfields, landing in under 4,000 feet and take off if less than 3,000 feet. One of the most impressive aspects of the aircraft is its ability to operate with a service ceiling of 30,000 feet, thanks to its pressurization system. It’s cruising speed of 234 knots and range of 1,300 nautical miles is achieved by its fuel efficient turboprops.

As of march 2021, Beechcraft discontinued the C90 line. However with over 3,100 manufactured, this aircraft will continue to grace the skies for years to come.