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Borogove

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  1. The 330kN NERVA was spec'd to weigh about 17.5 tons (TWR = 2g) (vs. the 2.25 for the LV-N, TWR = 2.72g). Even with the discounted ISP, the LV-N is more efficient. Also, it's about 3m in diameter -- bigger than a Mainsail.
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