Anonymous ID: 40846f Feb. 7, 2019, 2:09 p.m. No.5070365   🗄️.is 🔗kun

>>5070163 (pb)

>>5070012 (pb)

Not that uncommon.

http://www.thedrive.com/the-war-zone/11502/nightstalkers-show-off-for-the-public-with-a-dramatic-urban-air-assault

https://www.twincities.com/2014/08/18/helicopter-training-over-cities-continues-through-thursday/

https://www.nola.com/military/index.ssf/2013/04/mystery_copters_over_new_orlea.html