Aircraft systems in plain terms.
A head-up display projects speed, altitude, and the flight path onto a glass combiner in the windscreen, letting pilots fly the approach with eyes outside — and it has become the favored tool for low-visibility landings.
Every flight search runs on one of three data pipelines — the 60-year-old GDS reservations systems, the airlines' newer direct NDC channels, or scraped fares — and the pipeline behind a site explains its price and content gaps.
SAF is a drop-in jet fuel made from waste fats, agricultural residues, and synthesized alcohol — chemically near-identical to kerosene, but global output remains roughly 1 million tonnes against jet-fuel demand near 300 million.
In a fly-by-wire aircraft the sidestick and yoke send electrical signals to flight-control computers, not cables — and those computers enforce limits no pilot can override in normal law.
Low-earth-orbit Starlink hardware cuts latency enough for video calls at cruise, and the flat-panel antenna installs overnight — two reasons the retrofit race spread across U.S. carriers.
Facial-comparison boarding matches a live camera image against the photo Customs and Border Protection already holds — no boarding pass required at the gate.