21.   Air tankers also provide mid-flight fueling so the fighters can stay aloft.

22.   Both the newts and the snails were expected to stay aloft until August.

23.   Discovery has enough fuel and power to stay aloft until Wednesday.

24.   If he falls short, Kafelnikov stays aloft.

25.   Kanda and Takezawa have said they chose Canada for the launches because balloons use less fuel and stay aloft longer in cold weather.

26.   Koptev agreed that the new station should be the priority, but voiced hope that the Mir could stay aloft for up to two years longer than currently planned.

27.   NASA instructed the seven-member shuttle crew to stay aloft an extra day and try to land at Kennedy Space Center in Florida late Monday afternoon.

28.   Since Discovery has enough fuel and power to stay aloft until Wednesday, NASA opted not to try for Edwards on Sunday.

29.   They have said they chose Canada for the launches because balloons use less fuel and stay aloft longer in cold weather.

30.   They are designed to keep wind from filling jump uniforms, which helps the jumpers stay aloft.