נעים להכיר-GPWS

[nimig]

למי שלא מכיר ומי שרוצה לדעת עוד, מאמר באנגלית על מערכת

GPWS

Ground Proximity Warning System (GPWS) monitors an aircraft

An aircraft is any machine capable of atmospheric flight.

Aircraft fall into two broad categories:

Heavier than air aerodynes, including autogyros, helicopters and variants, and conventional fixed-wing aircraft: aeroplanes in Commonwealth English, airplanes in North American English.

Fixed-wing aircraft generally use an internal-combustion engine and propeller

. 's height above ground as determined by a radio altimeter. A computer then keeps track of these readings, calculates trends, and will warn the captain with visual and audio messages if the aircraft is in certain defined flying configurations ("modes"). The modes are:

Excessive decent rate ("PULL UP" "SINKRATE")

Excessive terrain closure rate ("TERRAIN" "PULL UP")

Altitude loss after take off ("DON'T SINK")

Unsafe terrain clearance ("TOO LOW - TERRAIN" "TOO LOW - GEAR" "TOO LOW - FLAPS")

Excessive deviation below glideslope ("GLIDESLOPE")

Since the U.S. Federal Aviation Administration The Federal Aviation Administration is the entity of the United States government which regulates and oversees all aspects of aviation in the U.S.

History The Air Commerce Act of May 20, 1926, is the cornerstone of the Federal Government's regulation of civil aviation. This landmark legislation was passed at the urging of the aviation industry, whose leaders believed the airplane

required large airplanes to carry such equipment in 1974, the number of CFIT A controlled flight into terrain (CFIT) describes an unintentional crash by an airworthy aircraft into the ground (usually a mountain), usually without prior knowledge or expectation. A plane crash due to mechanical failures (such as engine burnout, etc.) is not a CFIT, since there is almost always prior expectation, and the aircraft is probably not considered airworthy.

One of the most famous incidents of controlled flight into terrain was Air New Zealand Flight 901. Flight 901 crashed into Mount Erebus, Antarctica on November 28, 1979. There is still disagreement over the exact causes of the crash, but it is commonly accepted that the pilots' loss of situational awareness and whiteout conditions at the time were contributory factors leading to the crash.

. accidents have reduced significantly. In 2000 the FAA extended this requirement to smaller commuter planes as well.

Traditional GPWS does have a blind spot. Since it can only gather data from directly below the aircraft, it must predict future terrain features. If there is a dramatic change in terrain, such as a steep slope, GPWS will not detect the aircraft closure rate until it is too late for evasive action.

A new piece of technology, the Enhanced Ground Proximity Warning System solves this problem by combining a worldwide digital terrain database with a Global Positioning System

The Global Positioning System, usually called GPS (the US military refers to it as NAVSTAR), is an intermediate circular orbit (ICO) satellite navigation system used for determining one's precise location and providing a highly accurate time reference almost anywhere on Earth or in Earth orbit.

The GPS system was designed by and is controlled by the United States

. Onboard computers can compare its current location with a database of the Earth's terrain. Pilots will receive much more timely cautions and warnings of any obstructions to the aircraft's path.

[Ittai Arnon]

ניתן להורדה חינם GPWS של Project maganta :wink:

מאוד מומלץ:

www.projectmagenta.com/products/pmsounds.html