That's a good one. Mine is helicopters. Military Blackhawks and a Sikorsky known as Marine-1 at times, to be specific. I live on the flight path from the Whi

That's a good one. Mine is helicopters. Military Blackhawks and a Sikorsky known as Marine-1 at times, to be specific. I live on the flight path from the White House to Camp David and they practice this flight multiple times per week. It makes sense because they need a full roster of people so they can provide minimum 2-deep 24 hour coverage and the folks need to be able to do it in their sleep in any weather conditions. It's still jarring to hear a trio of Blackhawks fly past me at a relatively low altitude.