; (B) upgrades and improvements to real-time tracking and data acquisition; and (C) such other measures relating to aeronautics research support and modernization as the Administrator considers appropriate to carry out the scientific study of the problems of flight, with a view to practical solutions for such problems. 406. Sense of Congress on on-demand air transportation It is the sense of Congress that— (1) greater use of high-speed air transportation, small airports, helipads, vertical flight infrastructure, and other aviation-related infrastructure can alleviate surface transportation congestion and support economic growth within cities; (2) with respect to urban air mobility and related concepts, NASA should continue— (A) to conduct research focused on concepts, technologies, and design tools; and (B) to support the evaluation of advanced technologies and operational concepts that can be leveraged by— (i) industry to develop future vehicles and systems; and (ii) the Federal Aviation Administration to support vehicle safety and operational certification; and (3) NASA should leverage ongoing efforts to develop advanced technologies to actively support the research needed for on-demand air transportation. 407. Sense of Congress on hypersonic technology research It is the sense of Congress that— (1) hypersonic technology is critical to the development of advanced high-speed aerospace vehicles for both civilian and national security purposes; (2) for hypersonic vehicles to be realized, research is needed to overcome technical challenges, including in propulsion, advanced materials, and flight performance in a severe environment; (3) NASA plays a critical role in supporting fundamental hypersonic research focused on system design, analysis and validation, and propulsion technologies