helideck
Rooftop aircraft pad
A helideck is a platform for helicopter landings, typically on a ship, offshore oil rig, or building rooftop.
Unlike a heliport, which is a full facility on land, a helideck is usually a designated landing area on a structure serving another primary purpose: The rescue helicopter touched down on the ship's helideck.
Aircraft lifted by blades
- chopperRotorcraft or cleaver
- rotorSpinning mechanical assembly
- bladesSharp flat cutting parts
- skidsUncontrolled sliding motions
turboshaft · hover · touchdown · liftoff · medevac · airlift · collective · cyclic
Raised flat structure
- rigEquipment arrangement or vehicle
- oilSlippery viscous fluid
- gasFormless, expanding substance
- drillingHole-making by rotation
vessel · marine · sea · ocean · petroleum · production · exploration · subsea
Raised flat structure
- padCushioned writing surface
- surfaceOutermost boundary layer
- markingsIdentifying visual features
- circleCurved closed shape
H · perimeter · lighting · netting · dimensions · reinforced · concrete · aluminum
Very tall urban building
- highriseMultistory urban building
- urbanPertaining to cities
- buildingEnclosed roofed structure
- penthouseTop-floor luxury apartment
hospital · elevation · cityscape · skyline · terrace · architecture · panorama · metropolis
Permitted passage or approval
- obstructionSomething blocking the way
- lightingArt of illuminating spaces
- foamBubble-filled substance
- rescueSave from harm
crew · certification · inspection · regulations · firefighting
rotorcraft
Aircraft lifted by blades
skids · turboshaft · hover · touchdown · liftoff · medevac · airlift · collective · cyclic · downwash
platform
Raised flat structure
drilling · vessel · marine · sea · ocean · petroleum · production · exploration · subsea · standby
platform
Raised flat structure
circle · H · perimeter · lighting · netting · dimensions · reinforced · concrete · aluminum · grating
skyscraper
Very tall urban building
penthouse · hospital · elevation · cityscape · skyline · terrace · architecture · panorama · metropolis
clearance
Permitted passage or approval
- obstructionSomething blocking the way
- lightingArt of illuminating spaces
- foamBubble-filled substance
rescue · crew · certification · inspection · regulations · firefighting
- oil industrypetroleum, oil fields, oil well, oil rig, oil production
- landing pads
- oilfield equipmentdrilling rig, oil rig, offshore rig, derrick, rotary drill
- heliportlanding pad, landing zone, touchdown zone, landing platform
- offshore rigsderrick, drill rig, drill bit, drawworks, wellhead