propulsion duct
11Ducted propeller — Kort nozzle A ducted propeller is a propeller fitted with a non rotating nozzle. It is used to improve the efficiency of the propeller and are especially used on heavily loaded propellers or propellers with limited diameter. It was developed by… …
12Fiber-optic communication — An optical fiber junction box. The yellow cables are single mode fibers; the orange and blue cables are multi mode fibers: 50/125 µm OM2 and 50/125 µm OM3 fibers respectively. Fiber optic communication is a method of transmitting information from …
13Coandă-1910 — Coandă 1910 …
14Lymphatic system — Infobox Anatomy Name = Lymphatic System Caption = An image displaying the lymphatic system.The lymphatic system in vertebrates is a network of conduits that carry a clear fluid called lymph. It also includes the lymphoid tissue through which the… …
15Turbofan — [ CFM56 3 turbofan, lower half, side view.] A turbofan is a type of jet engine, similar to a turbojet. It essentially consists of a ducted fan with a smaller diameter turbojet engine mounted behind it that powers the fan. Part of the airstream… …
16CFM International CFM56 — CFM56 …
17Ionocraft — [ thumb|right|A simple ionocraft, generating 15 gF (0.147 newtons) of thrust at 54 kV] An ionocraft or ion propelled aircraft, commonly known as a lifter, is an electrohydrodynamic device (utilizing an electrical phenomenon known as the… …
18DD tank — DD Sherman tank with its flotation screen lowered Service history In service 1944–1950s …
19air-cushion machine — ▪ vehicle Introduction also called ground effect machine, or hovercraft, any of the machines characterized by movement in which a significant portion of the weight is supported by forces arising from air pressures developed around the… …
20Specific impulse — (usually abbreviated I sp) is a way to describe the efficiency of rocket and jet engines. It represents the impulse (change in momentum) per unit of propellant. The higher the specific impulse, the less propellant is needed to gain a given amount …
