How many types of helicopters are there?

There are a total of 155 types of helicopters. These include military and civilian rotary wing aircraft and related systems in the military factory. To name a few: Multi-Role Helicopters, Experimental Compound Helicopters, Single Seat Helicopters, Rotary Wing Autogyne Aircraft. Drone Anti -Submarine Helicopter, Reconnaissance Helicopter, Rescue Helicopter, and Unmanned Autonomous Helicopter.

They can all range from a small two-person private helicopter through large passenger carrying types to work vehicles that carry significant loads to remote places. After World War II, the commercial use of helicopters developed rapidly in many roles, including firefighting, police work, agricultural crop spraying, mosquito control, medical evacuation, and carrying mail and passengers.