David Luther and the HILLS team have opened a Kickstarter campaign to fund the building of a scale model version of their Horizontal In Line Launch Staging (HILLS) vehicle concept: H.I.L.L.S. SPACE PLANE by David I. Luther — Kickstarter
David Luther and the HILLS team have opened a Kickstarter campaign to fund the building of a scale model version of their Horizontal In Line Launch Staging (HILLS) vehicle concept: H.I.L.L.S. SPACE PLANE by David I. Luther — Kickstarter