The Learjet 55 is a mid-size business jet that was first introduced in the 1980s. It is known for its spacious cabin, which can comfortably seat up to eight passengers. The aircraft features a range of about 2,000 nautical miles, making it suitable for both domestic and international flights. Powered by two Honeywell TFE731 turbofan engines, the Learjet 55 offers a cruising speed of approximately 450 knots. Its advanced avionics and design contribute to a smooth flying experience, making it a popular choice among corporate travelers and private owners alike.