11. Alt = A propeller aircraft sits on a runway. 12. JR Executive operates a fleet of small propeller aircraft that can be chartered or leased. 13. LIAT was not always an all propeller aircraft airline. 14. Furthermore, it will likely put passengers, who worry about the safety of propeller aircraft , at ease. 15. The pilot of the four-engine Avro propeller aircraft reported that the left engine had caught fire. 16. Nevertheless, propeller aircraft " were " able to approach the speed of sound in a dive. 17. The pilot of the two-engined Avro propeller aircraft had radioed that the left engine caught fire. 18. The Downsview plant still turns out civil propeller aircraft , and the facility maintains thousands of employees. 19. The twin-propeller aircraft was on the routing Newark. 20. The Spanish-designed two-engine propeller aircraft are manufactured in Turkey and are the army's preferred light transport aircraft.