helipad
Rooftop landing circle
A helipad is a designated landing area for helicopters—a flat, marked surface where they can take off and land.
Helipads appear on hospital roofs for emergency medical transport, on offshore oil platforms, and atop tall buildings.
Unlike a heliport, which is a full facility with services, a helipad is just the landing surface itself.
Rotorcraft or cleaver
- rotorcraftAircraft lifted by blades
- rotorSpinning mechanical assembly
- skidsUncontrolled sliding motions
- cockpitPilot's control compartment
turbine · hover · landing · takeoff · airlift · pilot · flight · airborne
Emergency air transport injured
- emergencySerious sudden danger
- evacuationRemoval from danger
- paramedicsEmergency medical technicians
- ambulanceEmergency medical transport
search-and-rescue · triage · airlift · hospital · trauma · casualty · disaster · relief
Very tall urban building
- highriseMultistory urban building
- buildingEnclosed roofed structure
- penthouseTop-floor luxury apartment
- urbanPertaining to cities
hospital · elevation · access · cityscape · skyline · corporate · hotel · private
Paved airport surface
- markingsIdentifying visual features
- lightsSources of illumination
- concreteSolid building mixture
- pavementHard road covering
circle · windsock · apron · perimeter · fencing · drainage · dimensions · slope
Military aviation facility
- baseSupporting bottom structure
- outpostRemote military station
- carrierOne that transports
- navalOf maritime warfare
deployment · tactical · transport · reconnaissance · extraction · combat · assault · troops
chopper
Rotorcraft or cleaver
- rotorcraftAircraft lifted by blades
- rotorSpinning mechanical assembly
- skidsUncontrolled sliding motions
cockpit · turbine · hover · landing · takeoff · airlift · pilot · flight · airborne · gyrocopter
medevac
Emergency air transport injured
- emergencySerious sudden danger
- evacuationRemoval from danger
- paramedicsEmergency medical technicians
ambulance · search-and-rescue · triage · airlift · hospital · trauma · casualty · disaster · relief · lifeline
skyscraper
Very tall urban building
- highriseMultistory urban building
- buildingEnclosed roofed structure
- penthouseTop-floor luxury apartment
urban · hospital · elevation · access · cityscape · skyline · corporate · hotel · private · exclusive
tarmac
Paved airport surface
pavement · circle · windsock · apron · perimeter · fencing · drainage · dimensions · slope · surface
platform
Raised flat structure
maritime · cargo · supply · drilling · industrial · marine · weather · waves
airbase
Military aviation facility
naval · deployment · tactical · transport · reconnaissance · extraction · combat · assault · troops · supplies
- helicopter landing spots
- landing pads
- Military Airfieldsairfield, runway, runways, hangar, hangars
- polar facilitiesresearch station, weather station, ice station, base camp, field camp
- airportterminal, gate, gates, runway, baggage claim
- airportsairports, airport, terminals, terminal building, runway