The Navy selected Northrop Grumman's X-47B as its Unmanned Combat Air System Demonstrator (UCAS-D) program. The Navy selected Northrop Grumman's X-47B as its unmanned combat air system demonstrator (UCAS-D) program. The Airbus CityAirbus is an electrically-powered VTOL aircraft demonstrator. Trishul missile is declared a technology demonstrator. The X-34 began as a program for a suborbital reusable-rocket technology demonstrator. The aircraft, known as the Advanced Fighter Capability Demonstrator, first flew on 8 July 1980. Hawker Siddeley was also developing a new aircraft, based on its P.1127 V/STOL demonstrator. In November 2013, construction of an optionally-piloted scaled demonstrator was planned to start in 2018. Boeing and NASA plan to develop a larger BWB demonstrator. For this purpose, the winged Reusable Launch Vehicle Technology Demonstrator (RLV-TD) has been configured. Used for trials and as a demonstrator on military exhibitions. The vehicle was developed as a "production-tooled demonstrator" with private-industry funding from United Defense. NASA obtained Lockheed's C-141 demonstrator, designated L-300. Project Aditya is a technology demonstrator to prove beam control technology. The company plans to build a 70% scale demonstrator using existing General Electric T700 engines.