To add to subcategories use:

{{aero-stub}} for aircraft stubs

{{aero-company-stub}} for aeronautical company stubs

{{aerospace-museum-stub}} for aerospace museum stubs

{{air-sports-stub}} for air sports stubs

{{airline-stub}} for airline stubs

{{airport-stub}} for airport stubs

{{aviation-accident-stub}} for stubs relating to aviation accidents and incidents

{{aviation-bio-stub}} for aviation biography stubs

{{aviation-org-stub}} for aviation-related organizations

{{component-aircraft-stub}} for aircraft component stubs

{{engine-aircraft-stub}} for aircraft engine stubs

{{kite-stub}} for kite stubs

{{mil-aviation-stub}} for military aviation stubs

{{missile-stub}} for guided missile stubs

{{rocket-stub}} for rocket stubs