10-08-2007, 00:47
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חבר מתאריך: 23.09.03
הודעות: 12,141
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ציטוט:
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The block 50 F-16 Terrain-Referenced Navigation System provides a "position" input to help a new algorithm decide what nearby terrain could present a hazard to the aircraft. Based on the fighter's maneuvering attitude at any given moment, a specific area of the terrain database is "scanned," and elevation information is compressed into a 2D model.
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ציטוט:
Ultimately, the computer determines how much time is available before the aircraft will break through a pilot-selected minimum descent altitude (MDA), then triggers an autopilot- commanded protective maneuver. Typically, two chevrons (><) appear in the head-up display 5 sec. prior to an automatic fly-up, warning the pilot that Auto-GCAS is about to take over. If he takes no action, the chevrons move toward each other until their points meet, a flashing "break-X" symbol appears in the HUD and an aural warning annunciates, "Fly-up! Fly-up!"
At that instant, the Auto-GCAS commands some of the most aggressive, eye-watering maneuvers this ex-USAF flight test engineer and civil pilot has ever experienced.
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If aircraft speed is insufficient to climb adequately during a pull-up, the system also will announce, "Power! Power!", urging the pilot to push the throttle forward and gain airspeed.
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ואם כבר דיברת על נחיתה, ניתן להבין שכאשר כני הנסע מורדים המערכת משהה את עצמה.
ציטוט:
For our flight, Prosser set the Auto-GCAS in "Active" or "Low-Level" modes, with "Standby" appearing on the HUD only when the landing gear handle was moved to the gear-down position.
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On final approach for landing at Edwards, the Auto-GCAS switched to "Standby" as soon as the gear handle was lowered. If we had made a touch-and-go, the system would have automatically reactivated at gear-up. For safety reasons, it also is automatically deactivated when the air refueling door is opened, or alternate flaps are selected.
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נערך לאחרונה ע"י DeepSpace בתאריך 10-08-2007 בשעה 00:52.
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