Image Source: NASA Armstrong Avionics and Instrumentation Branch
Before looking at the disasters in air and space, it’s important to understand what is involved in flight tests.
Flight testing analyzes data during actual flight to evaluate any number of measurements and control parameters. The purpose of flight testing is to find and fix any design issues, gather operational and environmental data during flight and to verify vehicle capabilities for government certification and customer acceptance. The flight test phase can range from the test of a single subsystem to the complete development and certification of a new aircraft, launch vehicle, or spacecraft.