The first prototype of the Brazilian Embracer KC-390 military airlift/ tanker aircraft almost crashed during stall testing. The company has grounded the aircraft the flight test incident on Oct. 12.
The KC-390 was performing critical pre-stall tests, that involved high Angle Of Attack and simulated ice formation on wings. During the maneuver, an equipment used for the tests, allegedly detached from its mounting and rolled to the back of the cargo compartment causing a sudden change in the center of gravity of the aircraft. As a result, the pilots lost control of the aircraft which stalled and started to spin towards the ground. Reportedly, the pilots were able to regain control and recover the aircraft when it was only 1,000 feet (about 300 m) above the ground.
According to Embracer, the prototype suffered no damage to its “primary aircraft structure,” but requires repair to some of its access hatches and aerodynamic fairings.
The production and delivery schedule remains on track. The first KC-390 will be delivered from the middle of next year, with flight testing having reached an advanced stage.
Aviationist
Reuter
Flight Global
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