I've only been playing KSP for a few weeks now, but I'm hooked. Recently ventured into spaceplanes. Came up with this beasty capable of getting up to and perhaps exceeding 72-ton loads such as two Rockomax 64 tanks into orbits of 200+ km and landing back at the Space Center. Mods used: B9 Aerospace, Ferram Aerospace, Kerbal Joint Strengthener, Mechjeb. Craft file: https://www.dropbox.com/s/igwwb8wah4b2jd1/Aptenodytes%20Forsteri%20-%20Heavyweight%20Mk2.craft?dl=0 Lighter payloads can go without the external fuel tank and/or solid fuel boosters. Critique much appreciated.