Scale: 1/32
wingspan: 16.25"
Length: 18.25"
Code: KH400XPTR

In 1993 Raytheon purchased the Hawker business jet product line from British Aerospace. The Beechjet 400 was eventually renamed the Hawker 400 to map it into the Hawker product line. The Hawker 400XP incorporates further aerodynamic, mechanical and interior improvements gleaned from the Hawker 800XP.

In October 2008, Hawker Beechcraft announced upgrades to the design, resulting in the new model designation Hawker 450XP.[citation needed] Upgrades include new, more fuel efficient engines (Pratt & Whitney PW535D models with 2,965 pounds of thrust apiece) Collins Pro Line 21 avionics and Collins Venue cabin management/entertainment system and a complete interior upgrade.