The Build-Up Approach – ABCs of Flight Test #2

This new column will feature a brief description, photo/video, and or reference that talks about a Flight Test Technique that students at USAF Test Pilot School are currently learning. It’s an alphabetical list of FTTs together with a chronological account of what future test pilots and flight test engineers are doing right now. It will complement the previous Friday’s FTT tweets as well.

The build-up approach is the fundamental safety principle in flight test.

Build up from the safest conditions: start from the middle of the envelope in airspeed, altitude, weight & cg.

Build-up approach: Take smaller steps as you get closer to risky conditions or the edge of the envelope.

The build-up approach is not defined anywhere but is widely used and well understood in principle.

Though it is not clearly defined, there are 5 build-up approach examples in the Introduction to Flight Test Engineering – AGARD Flight Test Techniques Series.

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This post summarizes references and #FTT tweets from the previous Friday. What is #FTT Friday?

#FTT Friday
Each Friday, @FlightTestFact will deliver examples, definitions, and explanations of flight test techniques for the entire day. You can view these tweets by searching for #FTT and #flighttest as depicted below. You can also click on the picture below to be taken to the twitter search results. What FTT would you like to know more about?


Previously: Air Data Systems Calibration?