Home Research For Teachers HISTORY ... Admin/Tools partially funded by NASA, it is still a private site. Therefore, before using our materials in any form, electronic or otherwise, you need to ask permission. There are two ways to browse the site: (1) use the search button above to find specific materials using keywords; or, (2) go to specific headings like history principles or careers at specific levels above and click on the button. Teachers may go directly to the Teachers' Guide from the For Teachers button above or site browse as in (1) and (2). FAQ Aircraft Propulsion - Level 3 Gas Turbine Operation and Design Requirements Gas Turbine Usage In an aircraft gas turbine the output of the turbine is used to turn the compressor (which may also have an associated fan or propeller). The hot air flow leaving the turbine is than accelerated into the atmosphere through an exhaust nozzle (Fig. la) to provide thrust or propulsion power: Figure 1a. Schematic for an aircraft jet engine Figure 1.b A land-based gas turbine. A typical jet engine is shown in Fig. 2. Such engines can range from about 100 pounds of thrust (lbst.) to as high as 100,000 lbst. with weights ranging from about 30 to 20,000 lbs. The smallest jets are used for devices such as the cruise missile, the largest for future generations of commercial aircraft. The jet engine of Fig.2 is a | |
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