Let us hope for Virgin's sake that "many times" doesn't mean six times for ten seconds each. I have heard of one long duration test on the plastic fuel reporte

Let us hope for Virgin's sake that "many times" doesn't mean six times for ten seconds each. I have heard of one long duration test on the plastic fuel reported by the "Virgin watchers" in Mojave, so unless they are doing long duration tests somewhere else it doesn't seem like much. Rocket engine testing is extremely noisy so long duration tests are quite noticeable.