British Isles is ok for me
Potentially, some of the soon to retire Wessex may be 40 years old (Feb63) but although very nostalgic, should have been retired years ago. If anyone within UK defence had any forsight, the Puma (65 design entered service in 71) would have been replaced by now.
The only real competition for the IAC Allouettes for longevity will come from other Allouette users. Switzerland or France come to mind.
Either way, good effort: Hope retirement comes with a safe flying record.