Tracking Manufacturer Test Flights: Purpose and Methods
New airliners perform factory test flights before delivery, flying complex patterns that can appear as emergencies on radar. These non-revenue flights verify aircraft systems and performance.
New airliners, valued at hundreds of millions of dollars, routinely take off, fly multi-hour flight paths, and land back at their origin. To observers watching radar, these wide loops with no destination can resemble an emergency. In reality, such non-revenue factory flights are the final proving ground before an airframe can carry paying passengers. They allow the manufacturer to see the completed aircraft in action and confirm it operates as intended before delivery to the customer.
Sources
- simpleflying.comWhere Manufacturers Actually Fly Test Flights & How To Track Them