Questions tagged [engine-placement]
For questions about the location of engines on an aircraft.
7
questions
34
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4answers
30k views
How does the mounting location of a jet engine affect aircraft performance?
Different jet airplanes mount the engines in different ways.
For example:
Under the wing
To the fuselage
How does the engine location affect aircraft performance? Is one better than the other?
9
votes
2answers
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How do you choose engine placement for under wings engines?
I'd like to know how you choose the location of the engines under the wings, in the case of a 4-engines aircraft with low wings (and therefore with engines under the wings).
Concerning the ...
29
votes
3answers
9k views
Why do most airliners have underwing engines, while business jets have rear-mounted engines?
Why have modern airliners converged on a configuration with two or occasionally four underwing engines, while modern business jets have converged on a configuration with two or occasionally three rear-...
12
votes
4answers
7k views
Why is the F-35 engine nozzle exposed?
I was wondering why the F-35 engine is exposed. The F-22, F-16 and the YF-23 Black Widow have the exhaust nozzles of their engines blended flush with the fuselage.
(YF-23 Black Widow)
(F-35)
The YF-...
39
votes
6answers
34k views
Why don't passenger aircraft use the trijet configuration anymore?
As a kid I distinctly remember seeing aircraft like the bright blue KLM MD-11 having the prominent third engine on the tail.
https://commons.wikimedia.org/wiki/File:KLM_MD_11_AMS.jpg
However, I don'...
3
votes
4answers
6k views
Why are the Boeing 747-8 engines on the wings spread apart? [duplicate]
I ask this because the Boeing 747-236 had the engines close together while the 747's have them spread apart. Does it have anything to do with the amount of thrust of the aircraft?
Look at how spread ...
16
votes
2answers
1k views
Are the A380 engines interchangeable (given they are not all equipped with reverse)?
I have noticed that the A380 only uses the two engines closest to the fuselage to reverse thrust to brake. Are all four engines the same (i.e.: could they theoretically swap engine 1 and engine 2) or ...
