Elon Musk @elonmusk
@MartianDays @Erdayastronaut @torybruno @AerojetRdyne We def could be wrong about this, but it’s actually good to fix high efficiency vacuum engines with giant nozzles in place & only thrust vector engines with smaller nozzles. Don’t need a lot of room & moment of inertia is much lower. — PolitiTweet.org