百度 这里最值得注意的是速度：FirefoxQuantum的速度非常快，至少与早期版本的Firefox相比。
Bleed air is hot air taken from the compressor stage of turbine engines, used to power other aircraft systems.
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How does engine bleed impact N1 and EGT
Could somebody explain impact of bleed air extract from engines on take-off N1 and EGT? As far as I know (considering 737NG) using engine bleed air decreases calculated N1 for take-off by the FMC, ...
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Why does an APU fitted with a load compressor consume less fuel while operating two packs instead of one (e.g 737NG)?
As far as I know, an APU that takes its bleed air from the compressor section consumes more fuel the more bleed air is extracted, like the engines. Some APUs have a load compressor for the bleed air ...
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Which of the major airliners are bleedless?
Bleed air is compressed air taken from a jet engine, and is mainly used to provide pressure for the aircraft cabin.
Fume and smoke events, due to contaminated bleed air, are regularly reported on ...
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Why is a dedicated compressor more efficient than using bleed air to pressurize the cabin?
Bleed air is air "stolen" from the compressor of the jet engine and has traditionally been used to pressurize the cabin. The alternative is to use a separate compressor just to provide cabin ...
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How do bleedless passenger airliners keep cabin air breathable?
When you web-search an answer for how airliners maintain cabin air breathability, the typical answer you get is that bleed air is the key: new air comes in from the outside and gets mixed with old air....
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Where does the air used in an air cooled oil cooler come from in jet engines?
For example, in a turbofan engine the air is taken from the ambient air outside the engine or is it taken from the compressed air from one of the compressor stages ?
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What is the amount of bleed air required for de-icing? What is the power impact of this bleed air?
I was wondering if anybody has any rough equations/figures that answer the following questions.
What is the mass/flow rate of bleed air required for de-icing based on temperature of the air intake?
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What is the speed of anti-ice bleed airflow in helicopter turboshaft engines?
If we consider the most modern turboshaft engines, what will the approximate speed for the bleed airflow when it's routed from the latter stages of the engine and supplied to the areas that require ...
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How is bleed air flow related to thrust level?
I read that the bleed flow negatively affects the thrust levels for a turbofan engine. However, I was wondering if vice-versa is true as well? Whenever the thrust levels for a turbofan are lowered at ...
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How does a C208B's climate control system that utilizes bleed air for cabin heat work?
I'm studying the systems on my first turbine-engine aircraft, specifically, a C208B.
I know that there is "bleed air heat" that mixes with re-circulated cabin-air. I know that the bleed air ...
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What is that to and fro moving thing?
This video by AgentJayZ is the maintenance and repair of AI-25 turbofan. What is that thing moving due to applying certain pressure to that pipe? Can anyone describe its purpose and how it works?
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In the B737, does Trim Air require that air supply (by the APU, engines or external) is provided in order to operate?
Will switching ON the Trim Air switch in the B737 provide instrument cooling even without bleed air or external air supply?
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If the APU is switched off but the APU bleed is on, will the engine bleed valve close automatically?
On he A320 family aircraft, if the APU is switched off but the APU bleed is on, will the engine bleed valve closed by the Bleed Monitoring Computer (BMC)?
This what I understood after going through ...
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What is a typical range of air temperature used for engine inlet cowl anti icing?
So i was searching the internet for engine inlet cowl anti icing and found that usually compressor bleed air is used to prevent the ice formation in several parts of the aircraft.
I am mainly ...
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Could you start both A320 engines with APU BLEED on?
I've seen some procedures where one engine is started with APU bleed, then APU Bleed is turned off to avoid ingestion of non-desired gases and then the second engine is started with ENG 1 Bleed on.
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