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A set of rotating blades that extracts power from a flow. In aviation this primarily refers to the section of a gas turbine that extracts power from the combusted gases, as part of a turboshaft, turboprop, or jet engine.

8 votes
1 answer
10k views

How does a labyrinth seal work when the engine isn't rotating?

I believe I understand how a labyrinth seal in a turbine engine works when a the engine is running. …
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1 vote

How are turbine blades overhauled?

According to this article overhauling a high pressure turbine blade from the CFM56-7BE is 80% cheaper than producing a new one, which is roughly inline with my experience. … Turbine blades All of the above also applies to turbine blades, except that they often can be welded and repaired if they're cracked. They're much thicker and sturdier than compressor blades. …
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12 votes
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At what point is a turbine powered ducted propeller considered a turbofan?

They key difference is a prop can be considered a separate entity (add-on) to the turbine for a turboprop, but a fan is an integrated component for a turbofan. … A Turbine Engine featuring contra-rotating fan stages not enclosed within a casing I think the first one is more key, the prop can be considered as a separate entity, attached to the front of a turbine
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14 votes

What engine are these fan blades from?

Turbine Blade The turbine blade (part number 1475M35P01) is from the High Pressure Turbine (HPT) a CFM56-3 according to this ATSB report on performance testing of the engine. …
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