Avidyne Corp. and Mineral Wells, Texas-based S-TEC Corp. received an FAA supplementation type certificate to retrofit the Alliant Integrated Flight Deck into Cessna Conquest II twin-engine turboprop aircraft. The Conquest II is the third model that combines Avidyne’s Envision series of retrofit integrated flight deck products and S-TEC’s IntelliFlight 2100 Digital Flight Control System, joining Beechcraft’s King Air 90 and 200-series airplanes, Lincoln, Mass.-based Avidyne said. The Alliant Integrated Flight Deck package for the Conquest II includes dual-redundant Avidyne EXP5000 10.4-inch primary flight displays, Avidyne EX500 multi-function display and the S-TEC IntelliFlight 2100 digital autopilot.