at any given time over a major metropolitan city (and NYC is the largest in the US), there will be any or all of the following types of airborne products:<p>Human-Operated Airborne Products:<p>Commercial Airliners
General Aviation Aircraft
Private Planes
Charter Flights
Cargo Planes
Business Jets
Helicopters
News Helicopters
Medical Evacuation (Medevac) Helicopters
Police, Fire, and Rescue Helicopters
Tour and Sightseeing Helicopters
Training Aircraft
Aerial Advertising Planes
Agricultural Aircraft
Military Aircraft
Aerial Survey Planes
VIP Transport
Gliders
Ultralights<p>Delivery Drones and VTOL/eVTOL:
Amazon Prime Air
Walmart Delivery Drones
UPS Flight Forward
Zipline
Flytrex
Wisk Aero
Archer Aviation
Beta Technologies
Volocopter
Elroy Air<p>Scientific and Testing Balloons:
College/University Scientific Balloons: Used for atmospheric research, air quality testing, etc.
Urban Air Quality Testing Balloons: For monitoring pollution levels in metropolitan areas.
Advertising and Non-Winged Craft:<p>Advertising Balloons: Large, floating banners or shapes for promotional activities.
Tethered Aerostats: Used by agencies like U.S. Customs and Border Protection for surveillance.<p>High-Altitude Surveillance Balloons: Including those used for military or security purposes.
Hot Air Balloons: For tourism, advertising, or personal enjoyment.<p>Weather Balloons: Released by weather services and research institutions for meteorological data.