Creative Speculation
In reply to the discussion: The Great Thermite Debate... [View all]Ace Acme
(1,464 posts)Also, thermite encased in cartridges could be fireproofed.
Radio control would obviate wiring complications, and would allow reprogramming of the ignition/detonation sequence if necessary.
Airliners operate on an autopilot tracking beam to guide them into the runway. I was told by a retired airline pilot that the precision of this autopilot was +/- ten feet. A radio beacon placed in the tower could guide the airliner into the target.
Aidan Monaghan claims that by 1994, remote controlled 737s were making landings with accuracy within a few centimeters.
I'd certainly be curious about the "less detectable methods" you propose that are better than thermite.
How are charges installed? Well, of course that depends on where they are, and who installs them. Most of the main structural columns were accessible for most of their length from the towers' 15 miles of elevator shafts. Some people have proposed that explosive mixtures could have been sprayed inside the hollow box columns through a small hole in the column wall.