31. Equipment rattled as turbine engines kept the four props blurring through increasingly heavy rain. 32. However, current turbine engines are unable to handle supersonic airflow. 33. Aircraft that require more than per engine tend to be powered by turbine engines . 34. Internally, the engines were heavy fuel oil-fired steam turbine engines . 35. The Mansfield Roller Mill now runs by water turbine engines . 36. Thus was born the idea to mate a turbine engine to a traditional propeller. 37. You can run a diesel engine or a gas turbine engine on powdered coal. 38. Boeing was a major producer of small turbine engines during the 1950s and 1960s. 39. Since the beginning of the 1960s the company have been developing bypass gas turbine engines . 40. Carbon dioxide emissions will continue to drop as manufacturers make gas turbine engines more efficient.
