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'Flight' section says "or 64% of the energy dissipated upon reentry from a moon mission" but this does not seem to be supported by either source. One source says the 4000F reentry temperature is 80% of that from a lunar mission. (Not clear that the 80% is of the Kelvin temp) - Looks like the 64% energy is OR based possible on squaring 80% - ignoring larger mass of Orion. I have moved the refs to before the 64%. It would be great to compare rentry velocities, and capsule kinetic+potential energy of Orion EFT1 and Apollo lunar missions. - 23:46, 6 December 2014 (UTC)