Longitude’s cockpit layout closely parallels that of Latitude. Three side-by-side, 14-in., landscape configuration flat panel displays occupy most of the instrument panel. The LCDs are some of the highest resolution screens yet installed in a business aircraft. Synthetic vision is standard. Above the screens are left and right display controllers and a central integrated standby instrument system. At the top, there is a central glareshield-mounted flight guidance control panel.

Most functions, including flight planning, are programmed through the four touchscreen controllers, two in the center console and one each in the left and right diagonal side panels.

Standard equipment includes auto-throttles, dual VHF comms, navs and FMSes, dual Mode S ES transponders with ADS-B In and Out functions, TCAS II, TAWS, dual LITEF AHRS supporting RNP 0.3, dual Rockwell Collins DMEs and Garmin 40 watt solid-state Doppler weather radar, plus VHF datalink radio supporting standard ACARS, as well as optional Link 2000+, CPDLC and FANS-1/A+ capabilities, Honeywell HF transceiver with SELCAL, Iridium SATCOM voice and data transceiver, CVR, ELT and XM satellite radio weather datalink, along with a fully integrated, comprehensive onboard diagnostics system that ties into SATCOM and wireless ground links.

Longitude will be the first Citation to have an optional HUD and EVS as factory standard options. Textron Aviation officials decline to discuss further details. Other options include flight data recorder, quick access recorder to support FOQA, dual hybrid LITEF AHRS or dual Honeywell LASEREF VI boxes needed for precision navigation better than RNP 0.3, second HF radio, single or dual ADF receivers, FANS-1/A+, CPDLC and Link 2000+ software packages, FANS-capable Iridium SATCOM datalink, L-3 WX-500 lightning sensor and Garmin airport surface awareness system.

This article is a sidebar to "First Look: Cessna Citation Longitude" published in the March 2016 issue of Business & Commercial Aviation.