The Learjet 23 is a business jet that was first introduced in 1964. It was designed by Bill Lear and is known for its speed and performance. The aircraft can accommodate up to eight passengers and is powered by two General Electric J85 engines, allowing it to reach a maximum cruise speed of around 500 knots. With a range of approximately 1,500 nautical miles, the Learjet 23 was one of the first light jets to enter the market, setting the standard for future business jets. Its sleek design and advanced technology made it popular among corporate executives and private owners alike.