Jukin Media Verified (Original) * For licensing / permission to use: Contact - licensing(at)jukinmediadotcom.\r<br>\r<br>Your flight training copilot presents a 3 part series on stalling. Part 1: What is a stall?\r<br>\r<br>I got good tweets ▷ I got good instas ▷ Like the Facebook page!\r<br>\r<br>As part of certification the Boeing 747-800 Cargo undergoes stall tests to certify a natural, helping and controllable aircraft reaction under stalled condition.