The design and operations of airports are largely influenced by the jet blast power. Here are five facts about it:ย
1. Jet engines on large aircraft can reach speeds of over 300 mph just a few meters behind the engine at full throttle during takeoff.
Jet blast can reach speeds of 100 mph (160 km/h) at distances of 200-300 feet (60-90 meters) behind the engine.
2. Dangerous jet blast zones for large commercial aircraft like the Boeing 737 or Airbus A320 extend up to 200 feet (60 meters) behind the aircraft.
For larger aircraft like the Boeing 777 or Airbus A380, the danger zone can extend up to 500 feet.
Smaller jets have a jet blast danger zone of 50-100 feet (15-30 meters). The velocity can still cause damage.
3. Jet blast can reach 1,300 to 1,600 degrees Fahrenheit (700 to 870 degrees Celsius). This can cause burns or even melt certain materials.
The exhaust can damage unprotected equipment or vehicles within 50 feet (15 meters).
4. Jet blast can overturn vehicles, blow unsecured equipment, and lift debris into the air at dangerous velocities, turning small objects into high-speed projectiles.
A Boeing 737's jet blast can move a 3-ton vehicle.
5. Noise from Jet Blast
โข Jet blast noise levels can reach over 140 decibels near the engine exhaust during takeoff. This is why noise protection is essential for ground personnel working near active aircraft.
โข The continuous exposure to jet blast noise without protection can cause hearing damage.
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