| 11. | The "'Lenoir cycle "'is an idealized thermodynamic cycle often used to model a pulse jet engine.
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| 12. | Pulse jet engines are similar in many ways to turbojets, but have almost no moving parts.
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| 13. | This is known as pulse jet cleaning.
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| 14. | Use of a turbine is not absolutely necessary : other designs include the pulse jet and ramjet.
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| 15. | It used pulse jets to power a rotor that rotated about the fuselage axis behind the cockpit.
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| 16. | The pulse jets produced no torque, and the tiny, belt-driven tail rotor was used only to improve directional control.
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| 17. | The aircraft was to be powered by a pulse jet, the same engine used in the V-1 flying bomb.
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| 18. | :: : That's a valveless pulse jet, apparently; I wouldn't expect a ramjet to take off from a standing start.
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| 19. | Some pulse jet designs used a tuned resonant cavity to provide the valving action through the airflow in the system.
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| 20. | In 2009, he received attention for serving as a test pilot on the maiden voyage of an experimental pulse jet-powered carousel.
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