Elon Musk @elonmusk
@thejackbeyer @MarcusHouse @artzius Center engines on ship will be same as booster engines. This is basically Raptor 2. Raptor Vacuum would be only variant. Tbd as to whether to commonize R-Vac with Raptor 2 (more thrust), keep same or tighten throat (more Isp). Adding 3 more R-Vac to ship with max Isp maybe … — PolitiTweet.org