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AssigneeEngineered Arresting Systems Corporation
InventorsRichard D. Angley, Michael S. Ciesielski, Christopher T. Dial, Peter T. Mahal, Robert F. Cook
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Vehicle arresting beds, for installation at the ends of aircraft runways, are effective to safely decelerate aircraft entering the bed. The arresting bed is assembled of a large number of blocks of cellular concrete having predetermined compressive gradient strength, so that aircraft landing gear is subjected to drag forces effective to slow a variety of types of aircraft, while providing deceleration within a safe range of values. An arresting bed typically includes an entry region of a depth increasing from 9 to 24 inches formed of blocks having a first compressive gradient strength. A second region, which may be tapered into the first region and increase in depth to 30 inches, is formed of blocks having a greater compressive gradient strength. An aircraft thus experiences increasing drag forces while it travels through the bed, to provide an arresting capability suitable for a variety of aircraft. Arresting bed systems may include composite blocks including portions of cellular concrete of different strengths, reinforced blocks including a lower layer or grid of higher strength material, and cellular concrete block edge members surrounding a bed of aggregate or poured in place cellular concrete.
A vehicle arresting bed system, comprising:
A vehicle arresting bed system comprising:
A vehicle arresting unit, for use in a vehicle arresting bed system, comprising:
An arresting unit comprising:
For use in a vehicle arresting bed system, an arresting unit in the form of a three-dimensional block of compressible cellular concrete having a specified compressive gradient strength (CGS) characteristic representing a selected gradient of compressive strength with depth, over a depth of penetration from at least 10 to 60 percent of block thickness, the arresting unit produced by a method comprising the steps of:
Dependencies are inferred from the claim text.