1.   The civilian operator will be required to own and operate a fleet of twenty trainers.

2.   Transport workers are employed in all sectors of the economy, for example in manufacturing firms who operate vehicle fleets.

3.   Members of the Doyle family had worked for a company operating a fleet of ice-cream vans in the city.

4.   Besides operating a fleet of trucks to collect trash, Browning-Ferris also operates landfills, recycling facilities and medical-waste treatment facilities.

5.   A federal law requires companies that operate fleets to buy a certain number of vehicles with a power source other than gasoline or diesel fuel.

6.   But Tim Kyger, a spokesman for Universal Space Lines, a company that hopes to operate a fleet of commercial, reusable spacecraft, is much more optimistic.

7.   But, although he now heads a company that had planned to operate a fleet of such vehicles commercially, such hopes have been put on indefinite hold.