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Questions tagged [f-22]

F22A Raptor Military Plane

3
votes
0answers
330 views

Were RCS tests performed on the ATF YF-22/YF-23 prototypes?

I know that radar cross-section (RCS) tests were performed on geometric models of both the YF-22 and YF-23 prototype submitted for the Advanced Tactical Fighter (ATF) competition, but were the same ...
10
votes
2answers
10k views

Why do the F-22 and F-35 look similar to each other and different from previous designs?

Is there a reason the F-22 and F-35 look very similar other than style, they look very different to F-16s so is there a conscious effort to make them look cool?
5
votes
1answer
895 views

How does the Pratt & Whitney F119 achieve its features?

The Wikipedia article on the Pratt & Whitney F119 that powers the F-22 says the following: The high pressure and low pressure turbines are single stage and counter-rotating, thus shortening ...
15
votes
2answers
11k views

Do F-22's use cartridge start to start engines?

What method does the F-22 use to start its engines? In the video below, you can see a flap open and flame and steam shoot out as the engine starts to spin up. Is this an example of cartridge start? ...
15
votes
4answers
6k views

Why is Russian super-maneuverable thrust vectoring more prevalent than American?

Based on the sheer number of super-manouverable thrust vectoring Russian fighter jets, it seems that Russia has put more effort into developing thrust vectoring for enhanced maneuverability than the ...
0
votes
2answers
1k views

What is the pressure distribution around a supersonic wing?

In subsonic flight the lift manifests itself at 25% of chord, but shifts to 50% of chord when the airplane goes supersonic. Wondering about that made me think that the reason might be that there is ...
4
votes
1answer
7k views

Why does the canopy of the F-22 Raptor have a golden tinge? [duplicate]

Why is gold used in the canopy of the F-22 Raptor?
8
votes
4answers
4k views

Why do the F/A-18 and the F-22 Raptor have horizontal stabilizer as well as canted rudders for pitch control?

F/A-18, F-22 Raptor have a horizontal tailplane as well as canted rudders? Why can't the horizontal tailplane done away with (as in the F-117) and have only the ruddervators for pitch control?
25
votes
2answers
5k views

What is this red canister on the tail of the YF-22?

On the tail section of the YF-22 further back in the image below, there is a red canister. What is that canister for? I suppose it is for some flight testing purposes from what I can see. I can't ...
9
votes
1answer
2k views

What is the feasibility of converting an F-22 to carrier use?

I read that the Navy originally considered to use the ATF(Advanced Tactical Fighter) Programme aircraft (Now known as the F-22) as carrier aircraft but declined to do so when it came out. How feasible ...
5
votes
1answer
3k views

Why does the F-22's wing give it such great maneuverability?

An F-22's wing is much different than a wing like the one on the F-16. This an F-16 wing design: (Source: www.aviastar.org). This is an F-22 wing: (Source: s3.zetaboards.com) There is a ...
3
votes
0answers
367 views

Why developing F-35 is harder than F-22? [closed]

I'm sorry if I'll be not so accurate in my description but, please, try to understand "core" of my question. F-22, ignoring high cost of each aircraft, appear to be a successful project, developed ...
7
votes
2answers
6k views

Advantages of square over circular engine nozzle?

The F-22 has square nozzles, while the Russian Sukhoi PAK FA has circular nozzles. There are both 5th generation planes, but with different nozzles, why?
11
votes
2answers
933 views

What are the flaps on the exhaust of military airplanes for?

I have been looking over some pictures of military airplanes, and I noticed that some of the more modern air planes have flaps on the exhaust I was wondering if anyone knew what the purpose of the ...
6
votes
1answer
2k views

What trade-offs are being made in the design of the planform alignment of stealth aircraft?

Stealth technology uses angles in the aircraft shape, and homogeneous orientation of the surfaces. In the F-22A Raptor wing leading edges, tail surfaces, air intake bypass doors, refueling aperture, ...
15
votes
3answers
2k views

How can you stop your missile locking onto a friendly target?

In the modern day we have advanced planes, and advanced missile systems, however, how can you stop your missile firing at a friendly aircraft? In planes like the F22 Raptor you can turn on sight lock,...
16
votes
4answers
9k views

How fast can an F-22 scramble?

The startup process in many military aircraft is, complicated, to say the least. It takes a lot longer than most would think. An F-16 from cold is required to be able to scramble within 5 minutes if ...
14
votes
1answer
2k views

Does the F-22 (or any other stealth aircraft) carry chaff?

Considering it is nearly undetectable on radar, it seems like it wouldn't have to worry about radar guided missiles; in addition to this it is sure to have sophisticated jamming capabilities. So why ...