Problem. Watch this video, then consider: US State department is code for overseas facilities. The folks to stop are obviously people trying to ram thought to deliver a payload. Problem: This barrier needs a lower restraint bar. Reason: look what happens to the hood. Look how far forward it goes, and remains largely intact as it does so. Now imagine mounting a payload of c4 bricks attached to the underside of the hood in serial array for timed post contact detonation (3-5 seconds, triggered by a piezo-electric initiated timer). In that event, the faster (well, aggregate inertia) the delivery vehicle has when it impacts the barrier, the FARTHER the payload will be sent forward. Design is a good start,...but it needs some additions. . I suspect this is designed for an environment where those might not be practicable. Because if you CAN have them, they are, on their own, pretty much superior to what were seeing here. This looks like (Im only guessing) a design for a system to defeat terminal penetration in an environment where space access is such that reconstruction or emplacement of doglegs is impracticable/impermissiable. This barrier has an extremely small footprint for the wonderful job it does. But it needs a veritical block--something to throw off a straight inertia flight of any object/component that is taller than it is. If this is NOT being designed with the requirement of a small footprint and little approach control in mind...then Im not entirely sure of the purpose. There are places--lots of European embassies and consulates Ive been to...where there is simply not the available footprint. Im just back projecting (kind of story imagining in reverse) somebody charged with the security in those places leaning back, looking at the potential for disaster with no control over the roadway even 10 meters beyond their doorway, saying, Now damn. Yknow what I wish we had, since we CANT have doglegs?) Because, as you and Gordon point out, those are THE objects you need. Reduction of inertia has a more than directly proportionate effect on delivering payloads--for all sorts of reasons
Posted on: Mon, 29 Sep 2014 19:39:36 +0000
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