The 500 ton figure also includes the oxidizer which contain no carbon. The equivalent of a plane's jetfuel, RP-1, in a current Falcon 9 is just 123+32=155 metri

The 500 ton figure also includes the oxidizer which contain no carbon. The equivalent of a plane's jetfuel, RP-1, in a current Falcon 9 is just 123+32=155 metric tons [1]. [1] http://spaceflight101.com/spacerockets/falcon-9-ft/ http://spaceflight101.com/spacerockets/falcon-9-ft/