The Bombardier Learjet 40 XR executive aircraft （龐巴迪利爾40XR公務機） is powered by two aft fuselage-mounted TFE731-20-BR-1B turbofan engines from Honeywell Engines & Systems. An upgrade of the TFE731-20-AR-1B engine, developed in partnership with Bombardier for the clean-sheet designed Bombardier Learjet 45 business jet （龐巴迪利爾40XR公務機）, the TFE731-20-BR-1B brings proven maturity along with a host of high-end features that add value beyond anything else in the light jet category.

Avionics 航電

The Bombardier Learjet 40 XR business jet （龐巴迪利爾40XR公務機） is equipped with a Honeywell Primus 1000 avionics system, including an Electronic Flight Instrument System (EFIS), equipped with an EICAS, for unparalleled new levels of systems management. The EICAS integrates the multitude of electromechanical instruments that previously were required to display critical engine parameters, offering significant safety and operational benefits. The EFIS, which employs four large displays, presents vital information to the crew in an uncluttered format, simplifying cockpit scan and thereby reducing pilot workload and fatigue.
 
 
The Primus 1000 is Category II approach capable. Standard features include:
 
• EFIS with four 8 x 7 in (20.3 x 17.8 cm) displays
 
• “Dark Cockpit” methodology presents vital information on a “need-to-know” basis, suppressing extraneous data
 
• Dual Data Acquisition Units (DAU)
 
• Dual Micro Air Data Computers (MADC)
 
• Color Weather Radar with rain echo attenuation compensation
 
• EICAS provides systems and status information
 
• Display and Guidance Computers (DGC) integrated with autopilot, flight director, EFIS and EICAS processors
 
• Dual Attitude and Heading Reference System (AHRS) Fiber Optic Gyros