Why this biz jet endured -37c in Canada

Dassault Aviation's new business jet, the Falcon 6X, has successfully completed a series of 'cold-soak' trials.

The tests were undertaken in Iqaluit in Canada’s far north, alongside engine manufacturer Pratt & Whitney Canada. The intensive inspections subjected the aircraft to temperatures as low as -37c.

During the testing, the Falcon 6X was cold-soaked for three consecutive nights and subjected to different start sequences each morning, followed by a series of procedures including engine ground runs and high-speed taxiing.

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Following the ground analysis, a special flight was performed during which the aircraft’s anti-icing systems and handling qualities were checked and the stability of fuel and hydraulic fluid temperatures were verified as the aircraft maintained a holding pattern below 10,000ft.  

Carlos Brana, the OEM’s executive vice president of civil aircraft commented: “The Falcon 6X continues to impress us with its performance and reliability as we move through the certification process.

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"The aircraft operated flawlessly at the extreme temperatures an aircraft can be subjected to in the severest climate conditions. That includes engines, systems and low-temperature maintainability requirements,” added Brana.

This latest round of testing follows earlier cold weather trials conducted at Iqaluit in December. These comprised 50 hours of exposure to temperatures as low as -25c.

As of mid-April, the wider Falcon 6X test programme has accumulated 650 hours and over 220 flights.