Aymara Indians, accustomed to the exhausting altitudes of 12,000 to 14,000 feet, are the most efficient carriers and can outrun any law officer.

But industry experts said it would have to cut that to 2,000 to compete with more efficient carriers like Cathay Pacific or Singapore Airlines.

It is a very efficient carrier for glucose.

Management says it needs the savings to compete with more efficient carriers.

Today, the privately held company generates $600 million a year in revenue and has earned a reputation as an efficient and scrappy carrier.

Risk-taking investors, not budgeteers, will channel money into the most efficient carriers.

More highly charged, smaller ions are more efficient carriers of the electrical current.

His intercontinental strategy is to make S.A.S. the most efficient carrier to as many major destinations as possible.

Of the 160 check-in desks, 64 belong to Turkish Airlines, which has become a comfortable and generally efficient carrier, especially on international routes.

And this time he has no ready-made monopoly; the airline faces competition from a spate of domestic start-ups and sleek, efficient Asian carriers.