Avidyne and S-TEC said they are working on an FAA supplemental type certificate (STC) to retrofit the Alliant Integrated Flight Deck into Cessna Conquest II twin-engine turboprop aircraft. Avidyne said this STC will become the third airframe that will offer the combination of Avidyne’s Envision series of retrofit integrated flight deck products and S-TEC’s IntelliFlight 2100 Digital Flight Control System. The Conquest II is being retrofitted and the FAA STC paperwork is being handled at S-TEC’s headquarters in Mineral Wells, Texas. The Alliant Integrated Flight Deck package for the Conquest II includes dual-redundant Avidyne EXP5000 10.4” primary flight displays, Avidyne EX500 multi-function display and the S-TEC IntelliFlight 2100 digital autopilot. In addition, the Alliant package comes standard with Avidyne’s CMax electronic charts and the ability to interface with the MLB700 Broadcast Datalink Receiver. CMax electronic charts display Jeppesen’s approach charts and airport diagrams on the EX500 MFD.