Elon Musk @elonmusk
@Mad_Maelstrom @Peter_J_Beck @torybruno @Starlinksat223 @Erdayastronaut Throttling is done by adjusting flow to the ox and fuel preburners. The lower limit of thrust is ox & fuel turbopump injector preburner “stiffness”, essentially when do the preburner elements start flaming out. — PolitiTweet.org