The Hawker 1000 was the largest member of the DH/HS/BAE-125/Hawker 800 series of corporate jets.
The Hawker 1000 is based on the smaller Hawker 800 but has a cabin 3 feet longer and is powered by Pratt & Whitney Canada PW-305 turbofans, instead of the Honeywell TFE-731 on the Hawker 800. These engines give the Hawker 1000 an extra 565 pounds of thrust on each engine.
The BAE-125-1000 became the Hawker 1000 in mid-1993, when Raytheon purchased BAE's Corporate Jets division.
The first BAE-125-1000 development aircraft flew on June 16, 1990.