Longitude Completes Initial Ground Engine Tests

Cessna took the next step toward first flight of the Citation Longitude, completing the initial ground engine tests on the super-midsize jet’s Honeywell HTF7700L turbofans, the company announced today. The tests verify engine start, fuel system and autothrottle functions, along with avionics, electrical and hydraulic system interfaces.
“The engine run tests are one of the final major milestones as we prepare for first flight,” said Scott Ernest, president and CEO of Textron Aviation. “This step really allows us to prove the maturity of the aircraft and its systems.” Textron will turn next to functional and structural checks of the airframe before first flight in the “coming weeks.”

The ground engine tests come about three months after Cessna mated the wings and fuselage on the first Longitude and two months after the company powered on the electrical distribution system in June.
“The speed at which we are progressing on the Longitude program demonstrates our industry-leading development cycle and affirms our commitment to new product investment,” said Ernest.

Textron chairman, president and CEO Scott Donnelly told investors recently that the company had ramped up research and development spending as it marched toward first flight, which he said was anticipated later this summer. He added, “The aircraft continues to generate significant interest as customers anticipate its entry into service late next year.”

The Longitude will become the largest member of the Citation series, with seating for up to 12 passengers. It will have a 3,400-nm high-speed range and a maximum cruise speed of 476 knots. The aircraft will be equipped with the Garmin G5000 avionics suite.

(News Source: https://www.ainonline.com)