Tests Examine The Aircraft's Ability To Resist Temperature Shock

The third Sukhoi Superjet 100 flight prototype SN95004 landed at Yakutsk airport at 1424 local time Friday. The aircraft was flown there to undergo cold soak trials.

The tests are required to examine the ability of the aircraft and its systems to resist against temperature shock. This testing is intended to validate the standard flight preparation of the aircraft after short (up to 2 hours) and long (no less than 12 hours) parking. This tests are designed to confirm systems performance, including the warming up time prior to departure.

The interior temperature in both the cockpit and the passenger cabin is also a part of the trials. Overall, the main checks will refer to engine launch procedures, fuel system and environmental system functionality. This aircraft that arrived Friday for testing has a full crew cockpit interior and passenger service equipment, including the interior, a kitchen and a lavatory, and represents full certification configuration. The launch and systems operations will be monitored by a specialized on-board control system.

Why Yakutsk? It's the planet's coldest inhabited area. Yakutsk airport, located in the proximity to the Pole of Code, is a traditional place for cold soak trials for Russia's aeronautics, as the average February temperature in Yakutsk is -35 degrees Celsius.

FMI: www.sukhoi.org/eng