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A set of techniques used by some military aircraft to avoid being detected by enemy air defences.
56 questions
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Can onboard radars detect stealth fighters at close ranges
Can the radar onboard any given fighter aircraft detect stealth aircraft at close ranges? Relevant information includes an incident involving 2 Iranian F-4 Phantoms being snuck up on by 2 F-22 Raptors ...
3
votes
1
answer
207
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Which way do radar waves scattered by edges go?
I know that grazing radar waves continue along the surface and scatter at the edges, and that stealth aircraft align edges to reduce the number of directions they go. But which way do the scatter?
Do ...
2
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2
answers
329
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How can an S-duct block radar?
Stealth planes use solutions like S-ducts to make sure radar waves dont have a line of sight to the engine face. But how do these avoid having the radar waves getting periscoped in and out? Are radar ...
12
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3
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How much performance is lost from stealth design considerations for fighter jets?
Fist of all, I understand the question is quite broad, so I'm mainly after a broad brushstrokes answer. Is it 'a lot', or merely 'just a little bit'?
How much do stealth design considerations (i.e. ...
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7
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1
answer
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Why is a conductive nose a desirable feature for stealth aircraft?
Recently I saw this illustration that lists the desirable characteristics of a stealthy plane.
Most of them make sense but I did not understand how a conductive nose could help the plane be more ...
- 5,149
7
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4
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5k
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Why doesn't Su-57 blend the engine nacelles with the fuselage, like other 5th generation fighters?
All the current and upcoming 5th generation fighter aircraft have increasingly similar physical layouts regardless of their origin. This seems to be due to similar design choices around stealth and ...
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0
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3
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864
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How does "continuous curvature" give stealth?
Wikipedia says
RCS reduction as a result of shape had already been observed on the Royal Air Force's Avro Vulcan strategic bomber,[117] and the USAF's F-117 Nighthawk. The F-117 used flat surfaces (...
11
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1
answer
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Can doppler radar be used to detect stealth aircraft by focusing on the characteristic flow field instead of the aircraft itself?
Any aircraft traversing through the air would impart velocity, pressure, and temperature gradients to the surrounding air, then there are some phenomenon which are unique to all winged bodies such as ...
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7
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2
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Is the F-117 actually inferior in its RCS than the F-22 and B-2?
This might seem like a purely opinionated thing, but bear with me. I think there is some general statement to be made here not based on guesswork.
Question: Is the F-117 actually inferior in its RCS (...
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2
votes
5
answers
1k
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Why is there no reconnaissance version of the B-2 stealth bomber?
So the B-2 is perhaps the stealthiest plane ever made. It has proven itself in combat missions when flying by night. But given the retirement of the SR-71 around 1990, I'm surprised the USAF did not ...
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27
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5
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Why are stealth aircraft not sky blue?
Why are stealth aircraft not painted sky blue on the bottom to make them hard to see by looking up from the ground?
At night or with clouds between the plane and ground, the plane won't be visible ...
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2
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Why does the B2 bomber's trailing edge sawtooth shape negatively effect its stealth characteristics?
I read an article about how the new B21 would have (in theory) a W shaped trailing edge, which was the initial shape intended for the B2 before the gust alleviation system was added to the ...
-4
votes
1
answer
284
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Two low flying large planes made bank turn - not on radar [closed]
On Thursday March 10, 2022, at approx. 7:30pm in Monroe, Connecticut, I witnessed two full sized planes following one another extremely low and then make an incredible bank turn.
These planes did not ...
0
votes
0
answers
190
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How expensive is the structural materials on a stealth aircraft compared to its other components?
Well, I couldn't find much information about the prices on the materials used on stealth aircraft, but nevertheless, its huge price tags are often quite obvious. The B-2 bomber, for example, costs 2 ...
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15
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5
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What is the significance of radar cross section (RCS) for air defense?
From the internet or any other medium of information I came to know that some cutting edge stealth aircraft have radar cross sections of a bird (or something similarly small).
I don't have the in ...
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