All Questions
5 questions
1
vote
1
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96
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What do the variable bleed valves on a CFM56 engine look like when starting said engine?
What do the variable bleed valves look like internally when starting engines? Does it exist a video of the VBV in operation?
- 11
0
votes
1
answer
152
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What gas turbines have the following configuration?
Is there any jet engines--with published data on the dimension of the turbines and compressors--that are of the configuration of 2 Low Pressure compressor, 8 High Pressure compressor, 2 High Pressure ...
- 323
3
votes
3
answers
499
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Would there be a purpose for a set of compressors in an electric turbo fan?
This is actually a two part question. Would there be a purpose to a compressor in an electric turbofan where there is no need for a combustion chamber, and if not, is there then a purpose for a bypass ...
- 31
5
votes
3
answers
3k
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Why does the Trent XWB have intermediate compressor stages?
I realized that the Rolls-Royce Trent XWB on the Airbus A350 has intermediate compressor stages. Why is that?
Other engines like the CFM56 or IAE V2500 that power most of the A320-family have low ...
- 685
18
votes
6
answers
10k
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Why do large turbofans generally have many more LP turbine stages than HP turbine stages?
In almost every large turbofan I see, the LP turbine stages outnumber the HP turbine stages by a factor of at least 2. Here's a photo of the RR Trent 900:
The Trent 900 (like most Rolls-Royce ...
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