Both fish and fowl
The US Defence Advanced Research Project Agency (Darpa) has launched the "Liberty Lifter" project to demonstrate a leap in operational logistics capabilities by designing, building, and flying a long-range, low-cost X-plane capable of seaborne strategic and tactical lift.
The new vehicle concept seeks to expand upon existing cargo aircraft by proving revolutionary heavy air lift abilities from the sea. The envisioned plane will combine fast and flexible strategic lift of very large, heavy loads with the ability to take off/land in water. Its structure will enable both highly controlled flight close to turbulent water surfaces and sustained flight at mid-altitudes.
Alexander Walan, a programme manager in Darpa’s tactical technology office: "This first phase of the Liberty Lifter programme will define the unique seaplane’s range, payloads, and other parameters." (ah)