The Cessna Citation is a staple product in Cessna’s business jet line being in production for over 40 years. With so many different models to accommodate passenger loads and fuel range, it has become one of the top producers of business jets over the years. Shadin has been part of solutions related to these aircraft, from OEM air data computers to fuel flow devices to aid in fuel planning as well as ADS-B transponder upgrades. Without the use of Shadin products these aircraft would require extensive upgrades costing thousands of dollars. In some cases, Shadin’s product enables features that were not previously useable or reliable such as fuel range rings. The ADC 2000 has been used to interface with transponders for decades. Shadin has built several converters for these aircraft to enable installation of various manufacturers’ equipment ultimately giving these customers options when doing avionics upgrades. Back in 2005 when Reduced Vertical Separation Minimums (RVSM) was mandated for aircraft flying above FL 290, Shadin developed two new ADC 6000 computers to give Citation owners another option to meet these demands and are still supported to this day.