Hi @Firemetal I made a second attempt with wings - 4.290 ton. album embed may be borked just now the album is http://imgur.com/a/ONtL7   Wings: the natural way to use a jet. Big-S Wing Strake has the mass of a wing but with LF tank built in Stage the under carriage for minimum drag - it doesn't have to land Jet: I used a dedicated atmosphere only Panther engine - less mass & less to orbit than a RAPIER Flight Path: heading & launch ti
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