SpaceX Begins Testing of the Merlin 1D Vacuum Upper Stage Reusable Launch Vehicle Engine
by Tommy on 1/10/2012
Merlin 1D Vacuum Upper Stage Engine
80 tons. I wonder if they can get by with just one engine on the Falcon Heavy upper stage.
An 80 ton hydrogen fueled Raptor engine – now that would be just sweet.
Icing. Cake.
lifeform@charter.net
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