Announcing the two altimeter landing.

No, not two of the same kind. But two different types, working on diffferent principles.

We have the standard altimeters, which compute from atmospheric pressure at the various altitudes, and which all airlines use.

But now, Lufthansa has installed special radar altimeters for the last 500 feet before a landing.

These radar types are particularly helpful from there on in. They bounce a radar beam off the ground and compute a continuously accurate reading — at a time when altitude is rapidly changing. They are not affected by changes in atmospheric pressure. And they are accurate to a foot.

Every Lufthansa jet has them. And every continent has weather conditions that will make them useful in a landing.