A third Sukhoi Superjet 100 prototype SN95004 landed at Yakutsk airport in Russia for cold soak trials.
Cold soak trials test the ability of an aircraft and its systems to resist temperature shock.
The testing will validate the standard flight preparation of the aircraft after short and long parking, and confirm systems performance, including the warming up time before departure.
Monitored by an on-board control system, the trial will also check the temperature in the cockpit and passenger cabin and assess engine launch procedures, fuel system and environmental system functionality.
Yakutsk Airport lies in the planet’s coldest inhabited area, where most cold soak trials for Russia’s aeronautics take place.
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