Transport Canada Certifies Gulfstream G500 and G600 Jets
Transport Canada has certified the Gulfstream G500 and G600 business jets for operation. The approval follows an extensive review of the aircraft's avionics, flight control software, and safety-critical systems integration. The certification comes as Gulfstream's newer G700 and G800 models are reportedly facing delays over safety concerns, underscoring the high regulatory bar for new aircraft programs.
- The G500 and G600 were the first civilian aircraft to feature active control sidesticks, a technology pioneered in military aircraft like the F-35. This fly-by-wire system, developed with BAE Systems, electronically links the two pilot sticks, providing simultaneous tactile feedback to both pilots and improving communication and situational awareness. - The flight deck, branded as the Symmetry Flight Deck, is based on Honeywell's Primus Epic avionics suite. It features ten integrated touch-screen displays, which are used for systems control, flight management, and communications, a significant departure from traditional cockpits with numerous physical switches. - Powering the jets are Pratt & Whitney Canada PW800 series engines, which feature a FADEC (Full Authority Digital Engine Control) system for optimized performance and efficiency. These engines require 40% less scheduled maintenance and 20% fewer inspections compared to others in their class. - The certification delays for the newer G700 and G800 models are linked to increased FAA scrutiny of software, a ripple effect from the Boeing 737 MAX incidents. The FAA has required a line-by-line validation of the software, a more intensive process than for previous aircraft. - The G500 and G600 applications for Canadian type certification had been pending for approximately six years. This was an unusually long period, given the Bilateral Aviation Safety Agreement between the U.S. and Canada, which is intended to streamline such processes. - The software for these aircraft is certified under the DO-178C standard, the primary framework used by the FAA, EASA, and Transport Canada for approving commercial software-based aerospace systems. The G700/G800 delays are specifically related to software validation under the model-based development criteria of DO-178C.
