1.   But some aviation experts said that as long as propeller aircraft and commercial jets share runways, such collisions are almost inevitable.

2.   Furthermore, it will likely put passengers, who worry about the safety of propeller aircraft, at ease.

3.   Ice had been a problem as well for the early generation of propeller aircraft.

4.   Propeller aircraft are becoming increasingly popular around the nation as airlines try to cut costs.

5.   Previously, the organization had recommended flying on propeller aircraft only during daylight hours and in good weather.

6.   To some degree, concerns about the safety record of propeller aircraft are justified.

7.   Travel agents say that customers sometimes switch their vacation plans once they learn they have to board a propeller aircraft to get to their destination.

8.   A propeller aircraft of a government-run airline crashed shortly after taking off from a southern Indian city Thursday, killing all six persons on board.

9.   Earlier Thursday in neighboring India, a commercial propeller aircraft crashed shortly after taking off from the southern city of Cochin.

10.   Many airlines around the world also fly the two-engine propeller aircraft.