Questions tagged [flight-testing]

Flight testing refers to those activities on an aircraft for the purpose of gathering scientific or engineering data or demonstrating compliance with airworthiness regulations.

Flight testing refers to those activities on an aircraft for the purpose of gathering data or demonstrating compliance. These activities evaluate aircraft performance, flying qualities and aircraft systems. Furthermore, these activities evaluate human performance in aircraft and study research questions related to aviation, aircraft-human interface, and other scientific investigations.

Flight testing is often separated into three primary categories, based on the content of the data and objective of the test.

  1. Experimental flight testing or research - answering scientific and engineering research questions;
  2. Developmental flight testing - preliminary testing that demonstrates compliance with airworthiness regulations; often followed by certification flight testing, a subset of this kind; and
  3. Production flight testing - testing to demonstrate that an aircraft manufactured by an Original Equipment Manufacturer (OEM) meets its intended design and function.

Flight Testing is usually conducted by specialized personnel, including test pilots and flight test engineers.

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What is the purpose of the ball and string attached to the tip of the vertical fin on test aircraft?

This question applies to aircraft being tested, presumably within a certification program. I've seen what looks like either a ball or "shuttlecock" at the end of a tether attached to the top/rear extremity of an aircraft's vertical fin. An example…
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How do test pilots determine an aircraft's capabilities?

How do test pilots figure out an aircraft's capabilities (service ceiling, cruising altitude, etc.)? Do they simply take the plane to its limits to get that information?
Madhav Sudarshan
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Why aren't test planes remote controlled?

There was a recent accident where SpaceShip2 broke apart in mid-flight, killing one and injuring another. Given that we can remotely control drones from the other side of the world, why couldn't we do the same with this test airplane? Considering…
space
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Who was the first flight test engineer?

The discipline of Flight Test Engineering has existed since at least 1903, but when did engineers identify their work, distinguish their work from other disciplines, under terms that would mark it as Flight Test Engineering? This may take the form…
Mark Jones Jr.
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How is engine thrust measured in flight?

When aircraft engines are evaluated in a test flight, how is the thrust of the engine measured? You would need accurate thrust numbers to calculate the real-world specific fuel consumption (i.e. not in a controlled environment like an engine on a…
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Does every Safety–of–Flight Test (SOFT) include full testing of each and every equipment?

Does every Safety–of–Flight Test (SOFT) include full testing of each and every equipment with the full EMC or is it just a basic quality test for some of the affected systems?
NitinG
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Has any Cessna Denali ever flown yet...?

With all the articles and hypes around the new Cessna Denali with its GE catalyst turbo-prop engine, I am wondering has any prototype of this plane made it into the air yet? I understand that the performance figures can be partly calculated but am…
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