Application of glass fiber easy-folding structure in airport

    On the afternoon of June 30, 1971, at San Francisco International Airport, a Pan Am Boeing 747 passenger plane collided with the light pole of the approach light at the end of the runway during takeoff. The damaged aircraft took off, hovered in the air and drained its fuel, and then returned to San Francisco Airport safely. After inspection, two light poles caused tears in the cabin and two passengers were seriously injured.

    The FAA believes that the incident is serious enough to introduce new rules for these structures around the airport, that is, they should break, destroy or twist themselves when the aircraft impacts, without causing obvious damage to the aircraft. The International Civil Aviation Organization adopted similar regulations in the early 1980s.

material selection

    When the supporting structure is hit by an aircraft traveling at a speed of 140 kilometers per hour, it should break, break or twist itself without causing obvious damage to the aircraft. Moreover, in the "easy-folding zone", in addition to withstanding various natural environments and weather conditions, the supporting structure also needs to withstand repeated aircraft jet impacts. Under the conditions of normal use, it should also ensure a long service life and relatively long life. Low maintenance costs.

    Early easy-foldable structures mostly used aluminum alloy materials. The easy-foldable support structures developed by EXEL generally use glass fiber materials, which have better performance.

    The specific gravity of glass fiber is 1/4 that of steel and 2/3 that of aluminum, which has a higher strength-to-weight ratio. The smaller the mass of the structure, the less energy will be absorbed in the event of an accident. Take the 5.5-meter-long light pole as an example, its weight is only 18.5 kg. For light poles or supporting trusses with smaller specifications, they can be installed or maintained manually.

    It can withstand severe weather conditions, the working temperature range is -50℃～70℃; it is resistant to chemical corrosion (especially under acid, salt and alkali conditions); the thermal conductivity is low, and the surface is not easy to freeze; it is resistant to ultraviolet radiation. In addition, the glass fiber has good electromagnetic wave transmission ability and has no interference to communication signals.

Hebei Yuniu Fiberglass Manufacturing Company Limited is a fiberglass material manufacturer with over 10-year experience, 7- year exporting experience.

We are manufacturer of fiberglass raw materials, Such asfiberglass roving, fiberglass yarn, fiberglass chopped strand mat, fiberglass chopped strands, fiberglass black mat, fiberglass woven roving, fiberglass fabric, fiberglass cloth..And so on.

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