Wiktionary
prototyped
a. constructed as a prototype
Usage examples of "prototyped".
Even so, he still found himself embarrassed by the celebrity status that had attached itself to his life during the races that prototyped not only the Empire's greatest attack starship, the Sherrington Starfury, but Sodeskaya's famed Krasni-Peytch Wizard Reflecting Drive.
All of this designed, prototyped, tested, refined, and brought online without Starfleet detecting any hint of it.