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Helipad

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A helipad is a specialized landing area within a heliport. It is used by helicopters and other vertical lift aircraft. These aircraft include powered lift and vertical take-off and landing (VTOL) machines. While helicopters can land on many flat surfaces, a fabricated helipad is much safer. A helipad provides a clearly marked, hard surface. It is also placed away from obstacles to ensure a safe landing.

Helipad
Helipad

When a landing area is much larger, it may be called a vertiport. These larger spaces are intended for helicopters and other VTOL aircraft. A notable example is Vertiport Chicago, which opened in 2015. Many helipads are located near airports or heliports. These locations provide essential services like fuel and air traffic control. They also offer maintenance facilities for the aircraft. Most helipads are built away from populated areas. This is due to constraints involving sound, wind, space, and cost.

Different types of helipads serve many specific purposes in society. Some skyscrapers feature rooftop helipads for air taxi services. Other high-rise buildings use basic helipads for emergency evacuations during fires. In maritime settings, large ships and oil platforms use them for boarding. On these vessels, the landing area is called a helicopter deck, helideck, or helodeck.

PFC William B Baugh (ship) 2
PFC William B Baugh (ship) 2

Police departments also use dedicated helipads at heliports as bases for their aircraft. Hospitals are perhaps the most vital users of these surfaces.

Hospital helipads facilitate medical evacuations and air ambulance transfers. They allow for the quick movement of patients to trauma centers. They also help accept patients from remote areas. These remote areas might lack local hospitals with high-level emergency medicine. In urban settings, these hospital heliports are often located on the roof. Rooftop pads often display important technical data for pilots. A large two-digit number may show the weight limit in thousands of pounds. A second number might indicate the maximum rotor diameter in feet.

NH90 ÅUCS flygplats maj 2012
NH90 ÅUCS flygplats maj 2012

Constructing a helipad requires specific materials and markings. Most helipads are built from concrete. They are marked with a circle or the letter "H" to be visible from the air. In remote areas, wildfire fighters may build temporary pads using timber. This allows them to receive supplies where they are needed most. Other methods include using rig mats or even building pads on ice. Some areas require portable helipads. These have rugged frames and can land on slopes of up to 30 degrees. They are useful on hillsides, riverbeds, or boggy areas.

Helipad
Helipad

Helipads can exist in some of the most extreme environments on Earth. India has constructed the world's highest helipad. It is located on the Siachen Glacier. This incredible structure sits at a height of 21,000 feet above sea level. This is approximately 6,400 meters. Such locations show how vertical lift technology can reach places others cannot.

NH90 ÅUCS flygplats maj 2012
NH90 ÅUCS flygplats maj 2012

To keep aviation safe, authorities issue location identifiers for helipads. These identifiers help pilots know exactly where they are. Several authorized agencies manage these names. The Federal Aviation Administration works in the United States. Transport Canada operates in Canada. The International Civil Aviation Organization and the International Air Transport Association are also involved. Some helipads might even have identifiers from multiple different sources. These identifiers can vary in their format and name.

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File:Helipad at Blessington Lakeside Resort - geograph.org.uk - 262175.jpg
Helipad at Blessington Lakeside Resort -...
File:Helipad.svg
Helipad.svg
File:PFC William B Baugh (ship) 2.jpg
PFC William B Baugh (ship) 2.jpg
File:NH90 ÅUCS flygplats maj 2012.JPG
NH90 ÅUCS flygplats maj 2012.JPG
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