Sunday, June 16, 2013

Boeing Business Jet Aborts Landing in Heavy Rain

From the author: "Boeing Business Jet Aborts Landing in Heavy Rain - The approach flown was a CAT I ILS (Category 1 Instrument Landing System). I could see the rain column approach from the other side of the field so I got out my phone camera from the jump seat. You can hear the GPWS (ground proximity warning system) announce minimums at 200' AGL (above ground level), and shortly after all visibility is lost due to rain. You do not hear the "50" foot call out during the touch and go, but it had to be close. The HUD (heads-up display) really provides incredible center-line tracking, although you can't see the symbology from the camera angle.

Ultimately, we had plenty of fuel on board and we where given radar vectors back for another approach. In just 15 minutes the rain had passed and the sun was coming out."

An instrument landing system (ILS) is a ground-based instrument approach system that provides precision guidance to an aircraft approaching and landing on a runway, using a combination of radio signals and, in many cases, high-intensity lighting arrays to enable a safe landing during instrument meteorological conditions (IMC), such as low ceilings or reduced visibility due to fog, rain, or blowing snow. Category I has the Minimums at 200 feet.

A head-up display or heads-up display - also known as a HUD - is any transparent display that presents data without requiring users to look away from their usual viewpoints. The origin of the name stems from a pilot being able to view information with the head positioned "up" and looking forward, instead of angled down looking at lower instruments.

There's a difference between a Decision Height, exhibited in this video, and a Minimum Descent Altitude. A DH is the altitude where you decide whether to continue or not, and allows for a margin to re-configure the aircraft to go-around if necessary. An MDA is an altitude floor, one that you cannot go below unless you

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