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March 23, 2014

ANN's Daily Aero-Term (03.23.14): Height Above Touchdown

Height Above Touchdown The height of the Decision Height or Minimum Descent Altitude above the highest runway elevation in the touchdown zone (first 3,000 feet of the runway). HAT is published on instrument approach charts in conjunction with all straight-in minimums.

Aero Linx: The Association Of Independent Aviation Security Professionals Our Mission: To use our experience working for the Federal government, airlines, airports and with technology developers to promote the adoption of meaningful aviation security measures that effectively balance security, privacy and passenger convenience. Overview: The failed attempt by the “Christmas Bomber” to detonate a bomb he had brought on board NW Flight 253, again shows that the aviation security system remains ineffective against suicide bombers. When coupled with earlier attempts by the “Shoe Bomber”, the U.K. Liquids plotters, the 911 terrorists going back to Ramsey Youse

"A conventional surface layer looks like a sandwich, with layer upon layer. The surface layer we produce with the new method can be compared more to standing columns. This makes the layer more flexible and easier to monitor. And it adheres to the metal, regardless of whether the surface is completely smooth or not. The most important thing is not the material itself, but how porous it is." Source: Dr. Nicholas Curry, in comments made as researchers at University West in Sweden have started using nanoparticles in the heat-insulating surface layer that protects aircraft engines from heat. In tests, this increased the service life of the coating by 300%.