Analysis of information sources in references of the Wikipedia article "Rocket Racing League" in English language version.
"blow-down" mode: without external helium pressure, relying solely on helium pumped into the smaller internal propellant tanks [which limits] duration.
Although the Rocket Racing League held demonstration flights at a 2010 air show in Tulsa that Bridenstine helped organize, the venture failed to take off. 'It was before its time,' [Bridenstine] lamented