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To: B4Ranch

“It won’t be quite so easy as there has to be a dozen different models of the 400. I think the latest is 747-400XQLR. Each aircraft has a different base weight and capacity weight that comes into play.”

But, IIRC, all 747-400s have the engines mounted exactly at the same distance from the centerline, for starters. Daily observation, as was previously pointed out, could nail down VR for a particular scheduled flight.

BTW, on the blog there are links to a 747 takeoff cockpit Youtube there is a great head-on Youtube of a 747 during takeoff shot straight down the runway from a public access location. A terrorist with only an RC airframe might even achieve a direct hit from such a vantage point where only TWO dimensions are involved!


27 posted on 05/04/2013 1:14:21 PM PDT by Seizethecarp ((Defend aircraft from "runway kill zone" mini-drone helicopter swarm attacks: www.runwaykillzone.com)
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To: Seizethecarp

Runway security may become a higher priority than it is today.


28 posted on 05/04/2013 1:22:40 PM PDT by B4Ranch (http://www.theycometoamerica.com/)
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To: Seizethecarp

If we are to become paranoid about what someone can do then we must lock down everything and close all roadways. I could easily just bump you at highway speed from the road and maybe kill you. I could knock you over as you road a bicycle. We could even just push you down a flight of stairs.

There are no protections in the real world from all evil. It is a simple fact of life.


32 posted on 05/04/2013 3:11:40 PM PDT by CodeToad (Liberals are bloodsucking ticks. We need to light the matchstick to burn them off.)
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