We regularly see questions asking for people to identify a certain feature on an aircraft and they're normally tagged aircraft design.
Should we have a dedicated tag for these kinds of questions?
What is this on the starboard engine of the Dash 8?
What is this ring-shaped device behind this DC-8's jet engine?
What exactly are those openings in the bellies of many jetliners?
What is this protrusion on the door?
What is this nose cowl mounted display?
What is the function of the protruding outlet on the Trent XWB?