DARPA’s X-Plane Can Carry 100 Tons

Aurora Flight Sciences has revised the design of its Liberty Lifter, a maritime military heavy-lift transport being developed for DARPA. This efficient X-plane achieves substantial lift through the utilization of the wing-in-ground effect.

Since 2022, DARPA has been working on the Liberty Lifter project, aiming to create a cost-effective seaplane with the cargo capacity of a C-17 Globemaster III transport aircraft while having the capability to transport 100 tons of cargo. Additionally, it is expected to have a ferry range of 6,500 nautical miles (7,500 miles or 12,000 kilometers).

Navigating Development Challenges: Aurora’s Progress in Phase 1B Design

Aurora’s entry is currently in the initial design phase, Phase 1B, of its development cycle. This phase places significant focus on mitigating risks in the processes of designing, constructing, launching, and piloting the finalized X-plane, utilizing cost-effective manufacturing approaches.

As part of this phase, Aurora teams are constructing full-scale components, including a segment of the fuselage, using innovative materials. These components undergo testing independently before assembly. Furthermore, the company has developed test models for conducting water tests in a tow tank at Virginia Tech and is actively engaged in the development of sensors for the detection and prediction of surface waves.

Addressing challenging sea conditions is a key consideration for the Liberty Lifter, which operates using the wing-in-ground effect – a method where the aircraft flies close to the surface, gaining extra lift by utilizing the air trapped between the wings and the sea. While this approach is effective in calm conditions, adapting to rough seas is crucial for safe flight.

Restructuring the Liberty Lifter’s Tail and Float Configuration

Recent modifications to the prop-driven Liberty Lifter involve replacing the t-tail with a pi-tail configuration. Essentially, this change means that the stabilizers are supported by a fork-shaped rudder instead of a solid one. According to the company, this alteration enables the incorporation of an aft cargo door while enhancing the structural efficiency of the airframe. Another innovative adjustment is relocating the floats from the side-sponsons on the hull to the wingtips, improving performance while keeping costs in check.

Phase 1B is set to conclude soon, with the inaugural flight of the Liberty Lifter anticipated in 2028.

Read the original article on: New atlas

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