Toulouse - On March 27, the A321LR took off from Toulouse for Sharjah, United Arab Emirates, where the device will undergo hot-weather testing.

The hot-weather flight testing is part of the certification program for the Airbus' new long-haul variant of its best selling model A320neo.

In the hot weather, the Jets have to take off and land at a higher speed, due to the fewer lift force. The amount of lift generated by an airplane wing is affected by the density of the air. Air density decreases when the air temperature increases. The lower the air density, the faster an airplane must run to produce enough lift force to take off.

In addition to the take-off performance of the aircraft, the air conditioning system of the A321LR's cabin will also be tested on the ground to see if it provides a comfortable temperature for the passengers in the parked aircraft.

Airbus has used Sharjah International Airport before for hot-weather testings of its different models.

Hot-weather testing is a separate chapter in the aircraft certification campaign. Global warming is a fact of our age, and the global temperatures have been steadily rising for decades.

Due to the increase in air temperatures year by year, weight restrictions are more likely than before for flights taking off from those regions.

With an increased Maximum Take Off Weight (MTOW) of 97 tonnes and a third Additional Centre Fuel Tank (ACT), the range of A321LR extends to 4000nm (7400 km).