FlyinvV wrote:
Wasn't it the IRA that lobbed a few mortars into Heathrow from the Excelsior car-park ?
I would consider that a threat to aviation.
Indeed. And I must have imagined the TV news footage I saw of an IRA gun crew banging away with an AA gun at an Army Lynx (which remained blissfully unaware of the attack and escaped unscathed - unlike a.n.other Army helo some time later, which had a 'landing accident' or so they say).
People with AA guns should surely be considered threatening to aviation, even if they are fantastically bad shots.