Hawker Beechcraft has announced plans to increase the scheduled production of its Hawker 400XPR. The 400XPR is an upgrade programme for the Hawker 400 that adds winglets, the Williams International FJ44-4A-32 engine and optional Rockwell Collins Pro Line 21 avionics, as well as a number of other system enhancements. Certification of the engines and winglets is expected at the end of June 2012.

Source: Flight Daily News