Hawker 4000

Hawker 4000 Horizon
Role	Business jet
Manufacturer	Hawker Beechcraft Raytheon Aircraft Company
First flight	11 August 2001
Status	Active Service
Produced	2011-2013
Number built	73
Unit cost	US$22.91 million (2012)

The Hawker 4000, originally known as the Hawker Horizon, is a super-midsize business jet developed by Hawker Beechcraft (formerly Raytheon Aircraft Company).

Raytheon announced a new business jet in November 1996 as a larger aircraft than the existing Hawker 1000 that formed the top of Raytheon's jet range. The design, then known as the Hawker Horizon, was intended to fly in 1999, with certification and initial customer deliveries planned for 2001.

The first prototype made its maiden flight on August 11, 2001, with the second prototype and third prototypes making their maiden flights on May 10 and July 31, 2002. It made its public debut in November 2002 when a development aircraft was displayed at the National Business Aviation Association (NBAA) convention. As of March 2007 orders totaled more than 130 aircraft, with deliveries scheduled to begin in June 2008. On December 2, 2005 NetJets signed an order for 50 of the new aircraft, the largest single commercial order in the history of Raytheon Aircraft.

The Hawker 4000 is being certified to FAA FAR Part 25 standards, which places a five-year time limit on certification of a new transport category aircraft. The 4000 completed Function and Reliability Tests on May 25, 2006. During September 2005, a prototype underwent testing at the McKinley Climatic Laboratory at Eglin Air Force Base, Florida. However, since the Part 25 five-year window expired May 31, 2006, the company filed an extension request to head off the possibility that the certification program would need to restart from the beginning. On November 21, 2006, the company announced that the 4000 had received its FAA type certification.

In May 2008, BJETS completed an order for ten Hawker 4000 business jets from Hawker Beechcraft Corporation. The contract value including all options exercised was said to be in excess of $330 million. The deal was announced at EBACE on May 20, 2008. and Following the BJETS order, Hawker Beechcraft delivered its Hawker 4000 super-midsized business jet to customer Jack P. DeBoer during a special ceremony at the company's Customer Delivery Center in Wichita, Kan. At the time, the Hawker 4000 was the first aircraft in its class to be based on its composite construction.