41. She was propelled by two steam turbines, double reduction geared, driving a single screw propellor . 42. The co-pilot did not hear the call to feather the propellor on the affected engine. 43. They told Channel 7 news the plane's propellors stopped just before it went down in surf. 44. Since then, they have waited _ for food, water, money and for a new propellor . 45. Once the plane is high enough, the propellor tucks away and the machine glides on air currents. 46. No one was injured, and the ferry sustained only minor scraping to a rudder and propellor blade. 47. Folding propellers which reduce drag ( as well as the risk of breaking the propellor ) are standard. 48. It has two 100 hp Rotax 912S piston engines, variable pitch propellors , and retractable landing gear. 49. The novel Voith Schneider propellors proved very successful, allowing the ship to turn in her own length. 50. Another suggestion from Crestadoro was to replace the paddle wheels or propellors on steamships with a smooth cylinder.
