Similar Design Philosophy – A design which uses the same:
- Method of construction and manufacturing process (for example, machin
versus built-up part), - Detail part materials (for example, alloys or heat treat),
- Load path,
- Geometry, including section properties, except for minor differences resulting
from space limitations within the seat or aircraft interface, and - Attachment method, except for minor differences resulting from space
limitations within the seat
Typicallyto be considered minor differences to the geometry and attachment method must be shown to be equivalent to or less critical than the seat tested during baseline testing with regard to strength, stiffness, and seat permanent deformation. – AC 25.562-1B
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