FSX Update For The Boulton Paul P-111. The Boulton Paul P.111 was a British experimental aircraft of the 1950s designed to explore the characteristics of tailless deltas. This is an FSX update for the P111, featuring both a reworked VC and 2D panel with FSX compatible gauges. Unlike the model previously posted this has transparent cockpit glass and wotking flaps. Automatic afterburner and smoke effect added. Original model by Kazunori Ito, new reworked panels and effects by Michael Pook.