What does arranging all aircraft details to coincide with the OML angle of the aircraft refer to?

Arranging all aircraft details to coincide with the OML (Outer Mold Line) angle of the aircraft is referred to as planform alignment. This concept is essential in low observable (stealth) aircraft design, where maintaining a specific contour and angle relative to the overall shape of the aircraft is critical for reducing radar signatures and optimizing aerodynamic performance.

Planform alignment ensures that features such as the wings, fuselage, and control surfaces adhere closely to the predetermined OML. This alignment helps in maintaining the aircraft’s low observable characteristics by ensuring that all surfaces contribute to the intended stealth design, preventing any protrusions or misalignments that could increase radar visibility.

Other concepts like aspect alignment, profile matching, and structural harmony may relate to different aspects of aircraft design or performance but do not specifically address the alignment of details concerning the OML angle of the aircraft. For example, aspect alignment focuses on the overall geometric relationship of the aircraft’s different sections, while profile matching pertains more to the comparative shapes among aircraft types or models. Structural harmony generally addresses the cohesive interaction of structural components rather than their specific alignment with the OML.