aerial

air

airborne

aircraft

ambulance

army

aviation

bell

blade

blue

chopper

copter

emergency

engine

flight

fly

forces

helicopter

help

high

hover

industry

light

machine

military

motion

patrol

pilot

plane

propeller

red

rescue

rotor

save

search

service

silhouette

sky

speed

spin

sunlight

sunset

tourism

transport

transportation

travel

vehicle

war

work

yellow