A tag for a decommissioned aircraft which has may have become a tourist attraction, a museum exhibit or a gate guardian. The aircraft will generally remain in one place.
This applies to both military and non-military aircrafts.
- Technik-Museum Speyer 
- Imperial War Museum, Duxford 
- Concorde at Brooklands Museum, London 
How to Map
||for the node or the outline of the aircraft
||name of the aircraft (possibly its tail number, e.g. HA-LCR)
||to mark it as a tourist attraction
||for the operator of the aircraft
||Type of the aircraft
||for the construction date of the aircraft
||museum aircraft often have a Wikipedia page which can be tagged here
||museum aircraft often have a Wikidata item which can be tagged here
If the aircraft has some kind of amenity=* like a bar, restaurant or tourism=* like a hotel or a museum, it can be tagged as a separate node with own name and further information.
Don't use building=* on aircraft, even if they are remaining in one place.