Aviation Stack Exchange
Aviation Stack Exchange

Questions tagged [engine]

For general questions related to aircraft engines; use a more specific tag, such as [jet-engine] or [piston-engine], if possible.

Because there are several very different engine types for aircraft, you should avoid using this tag if you can use a more specific one, like:

Use this tag for questions where the specific engine type isn't important or isn't known, or where multiple engine types are being compared.

Other engine-related tags:

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Why don't airplane piston engines have mufflers?

It is understandable jet engines couldn't have mufflers, but even long before the jet age, airplane piston engines never had mufflers the way cars do. Is there any specific reason?
vn2000
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What is the significance of 104% for throttle power and rotor speed?

I noticed this initially when learning to fly Robinson Helicopters but fail to remember the reason my instructor gave me; this again came up when watching a video about the ISS. In helicopters (Robinson R22/44), the main rotor typically operates at…
Matt Clark
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What is the advantage of the blisk design in the new Trent XWB engine?

What advantage does the "blisk" or "bladed disk" type rotor have over the usual rotor system?
Mohamed Omar
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Why is the 60-year-old NK-12 more fuel efficient than Europrop TP400?

If Wikipedia is correct the 60 years old NK-12 is more fuel efficient than the Europrop TP400, the engine for the Airbus A400M transport aircraft. For the NK-12MV a specific fuel consumption of 0.219 kg/kW-hr is given. The TP400 has a specific…
Andrius
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What is "FAR power"?

The article "Boeing’s MCAS on the 737 Max may not have been needed at all" (The Air Current, January 10, 2021) quotes a Boeing e-mail about the 737 MAX that says (emphasis mine), I can't comment on last time either stalled an NG. Flaps up…
cjs
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What is the difference between BHP (brake horsepower) and HP (horsepower)?

So far as I know, brake horsepower (BHP) and horsepower (HP) are the same. But some books tell me that the two concepts are totally different. What is the difference between BHP and HP?
Mun Park
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What could lead to engine running hot on climb out?

I own a turbo Saratoga with an intercooler and gami's. The engine has 100 hrs so it is broken in and I can't get the cylinder head temps below 400 during my climb out and I am operating at full power. This has required me to run a very low power…
s urban
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What is the main difference between 'continental fuel injection system' and 'Bendix RSA fuel injection system'?

While I'm studying Aircraft Engine system, I learned that there are two dominant kinds of fuel injection system : 'continental fuel injection system' and 'Bendix RSA fuel injection system' I tried to find the main difference between those systems,…
Student412
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Engine rear nozzle outside vs inside

I'm not sure if it's called nozzle or something else. I'm talking about the cone shaped part of GA engines at the rear. Older engines, for example this Trent 700 had the cowling covering whole of the turbine - Ow newer engines, the rear part of…
Harshil Sharma
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How can a pilot deal with a magneto failure?

As I know, the engine is independent from the electrical system, and it is supplied from magnetos. However, how can a pilot deal with a magneto failure? And also, when one magneto fails what problems can occur?
Mun Park
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Can Turborockets replace Pure Rockets?

Would it be possible for a aircraft to deliver a payload into space using a turbojet-rocket hybrid? Merits are that they don't have to carry tons of oxidizer like a rocket would have to. It still may need to carry some but only when the atmosphere…
user12782
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Does the velocity of air in an engine increase in the compressor section or turbine section?

I think it increases in the turbine section because the pressure and temperature decrease so the velocity increases but I'm not sure.
Gary Zenger
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When wiil this person be able to replace his engines on a bunch of smaller ones to attach them on clothes?

That is the real question that bothered me. UK 'Iron Man' suit
John Smith
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Boeing 737 engine shape

why the front shape of the engine of Boeing 737 aircraft is not round ?? can anyone explain ?
ankon
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Do all B777 family aircraft have the same engines?

I think there are multiple variants of engines for the different variants in B777 family but I am not sure but is it GE90-115B in one while Trent and PW in others?
NitinG
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