What is another word for test-fly?
Pronunciation: [tˈɛstflˈa͡ɪ] (IPA) 
The phrase "test-fly" refers to the process of testing an aircraft or other flying machine before putting it into service. Some synonyms for "test-fly" include "trial run", "experimental flight", "aircraft testing", "flight testing", and "aerial evaluation". These phrases all convey the idea of testing an aircraft under real-world conditions to ensure it operates safely and effectively. Other related terms include "flight simulation", "aerospace testing", and "aviation research", which all involve techniques for evaluating aircraft and related technologies. Regardless of the terminology used, test-flying is an essential part of the design and development process for any aircraft, and is crucial for ensuring the safety and reliability of air travel.
