It is capable of performing border surveillance missions and aerial delivery of lifesaving supplies to islands and mainland territories via its internal cargo bay.

The development on the DELAER RX-3 started in 2018 and involved a consortium consisting of three research institutes of the Aristotle University of Thessaloniki of which the Laboratory of Fluid Mechanics and Turbomachinery acts as the project coordinator and two private companies, Intracom Defense Electronics (IDE) and Carbon Fiber Technologies (CFT).

[9] In November of the same year IDE signed a €9.7 million grant agreement with the European Commission for the funding of the now named LOTUS(Low Observable Tactical Unmanned System) project.

The DELAER RX-3 is a novel unmanned aerial platform, emerging from the HCUAV RX-1, that introduced an improved design and more advanced fuselage characteristics.

The aerial vehicle was designed for complete autonomous flight and interconnection with the Greek civic protection network, since its initial and primary mission is provision of humanitarian aid and ground patrol of isolated forest, mountainous and island regions of Greece.