September 30, 2012 · 3:01 PM · Tweet from Elon Musk (@elonmusk)
Now test firing our most advanced engine, the Merlin 1D-Vac, at 80 tons of thrust.

September 2012Twitter
September 30, 2012 · 3:01 PM · Tweet from Elon Musk (@elonmusk)
Now test firing our most advanced engine, the Merlin 1D-Vac, at 80 tons of thrust.
