After five days, one hour twenty-four minutes, and traversing over 7000 miles, Vanilla Aircraft’s VA001 touched down at NASA Wallops Flight Facility in Virginia, successfully completing the longest unmanned internal combustion powered flight in history. The 36-foot wingspan, diesel-powered aircraft landed with three days of fuel remaining on board, successfully meeting its goal of a five day flight. Carrying multiple payloads, including a NASA-furnished multispectral imager and a DoD-furnished sensor and radio, this flight showed the practical use of an ultra-endurance heavy fuel aircraft with a logistics footprint a fraction of those required by other current unmanned air systems.