Long-Endurance Reconnaissance UAV

Create a detailed parametric 3D CAD model of a modern fixed-wing UAV based on the supplied reference geometry. Design a long-endurance reconnaissance UAV with a broad blended central fuselage/wing body, very long high-aspect-ratio swept wings, two small wing-mounted propeller engines, a long slender rear tail boom, and a conventional single vertical stabilizer with a small horizontal tailplane. The central fuselage has a rounded aerodynamic nose, broad central equipment section and smoothly tapered rear section. Blend the fuselage continuously into the main wings using large smooth fillets. The nose should contain a small forward sensor/camera aperture and a small upper antenna. The main wings should be extremely long relative to the fuselage, moderately swept, tapered from root to tip, thin with realistic airfoil sections, slightly dihedral, and have subtly curved/rounded wingtips. Add flush aileron/flap control surfaces and several shallow rectangular access-panel outlines on the upper wing surfaces. Install one compact cylindrical engine nacelle on each wing, approximately halfway between the fuselage and wingtip. Each nacelle should have a short streamlined pylon and a two-bladed propeller at its forward end. Mirror the propulsion system perfectly. Extend a narrow aerodynamic tail boom from the rear of the fuselage. At its end, create a small swept horizontal stabilizer with elevator surfaces and a tall single vertical fin with a rudder. The vertical fin should have a swept leading edge, rounded top and tapered profile. Use smooth lofted/NURBS aerodynamic surfaces with tangent continuity. Avoid sharp transitions and faceted geometry. Use separate editable components for fuselage, wings, engine nacelles, propellers, tail boom, horizontal stabilizer and vertical stabilizer. Mirror all symmetric geometry. Use matte medium-grey composite material and subtle flush panel seams, access hatches, hinges and fasteners. Keep the design clean, realistic, lightweight and manufacturable. Prioritise accurate overall proportions, smooth aerodynamic blending, high-aspect-ratio wings, twin propeller nacelles, slender tail boom and conventional tail geometry over small cosmetic details.

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