The Runway Tech That Stops Runaway Planes
26th April 2015
The 4-foot cubes are made of a concrete aggregate infused with a foaming agent, which creates air bubbles. The bubbles give the cubes a low density, which allows them to collapse on impact. The number of air bubbles can be adjusted to create different strengths depending on whether an airport caters to larger or smaller aircraft.
I suppose it really isn’t practical to use tail hooks and arresting wires….