Why does the helipad have an "H"?

H is the first letter of Helicopter (helicopter). A rectangular area is used to indicate the helipad. Marking it with H can be very clear and easy to identify. Because the helicopter can rise and land directly, the H mark allows the pilot to better observe the helicopter's landing point in the air and correct the landing point when landing. When landing downward, the landing direction can be consistent with the opening direction of the H letter.

The geometric forms of helipads can be divided into round, square and rectangular. Generally, this is used to mark helicopter landing pads on ships and high-rise buildings. In order to facilitate observation, it is mostly marked with white. On the outer circle of the H mark, the circle is a universal mark and the triangle is used.

Extended information

The helipad is a venue for helicopters and vertical take-off and landing fighter jets. It generally requires corresponding navigation aids, air traffic control communication equipment, meteorological facilities, Fire rescue equipment, airport signage, etc., so that it can meet the requirements for safe takeoff and landing of helicopters.

With the continuous development of society, due to its unique flight characteristics, helicopters are widely used in passenger and cargo transportation, tourism, aerial photography, news collection, emergency rescue, etc., which also makes the helicopter apron market will be further developed in the future.

The geometric forms of helipads can be divided into circles, squares, and rectangles. The main categories are:

1. Form division: surface helipad, elevated helipad, and shipboard helipad. , Helicopter water platform;

2. Functional division: business apron, fire apron;

3. Structural division: steel structure helipad, concrete structure helipad.

The design of the helipad usually involves two major parts: flight procedure design and airport construction drawing design. The flight procedure design is implemented with reference to the regulations and rules of each regional administration; the airport construction drawings mainly include the general drawing engineering, flight There are five major parts: district engineering, navigation lighting engineering, water supply and drainage, fire protection engineering, and paving and supporting facilities engineering.

Helipad design qualifications are different from ordinary industrial and civil design qualifications. They must have drawings issued by a civil aviation professional engineering design enterprise qualification to be legal.

Reference: Baidu Encyclopedia - Helipad