Sukhoi passes into obselence as the 50th Raptor is delivered.

sumdud

Senior Member
VIP Professional
Hmmm..........
In an A2A battle, I'll take Aluka's words. It's relatively hard to detect a F22 w/ a ground radar since the plane's radar wave are going forward, and unless you are lucky enough to get the plane at an angle, your waves will simply deflect off the plane.

But in an A2A battle, the F-22's radar is on.(Note that the F-117 and B2 have no radars onboard.) And I am 99.999...999....% sure that the Raptor carries an active radar, you can detect the plane head on by receiving the Raptor's waves. And if you've noticed the back of the F-22, it isn't very stealthy, rather curved, meaning that if you are on its tail or on top of it, you can probably detect the plane conventionally.

It is disturbing to me that while the F-22 can achieve Supercruise(Flying faster than the speed of sound without the use of an afterburner), it can only achieve Mach 1.8, while the F-15 with a less powerful engine can do 2.5. But I guess I need some physics review here?

The manuverability of the Raptor is above average. It is better than that of some planes, but definitely behind that of the Flankers and Fulcrums. The Berkut, off course, I believe, has maybe the most mauverability w/o TVC. It and the MiG-35, Su-37/MKI definitely grabs top 3.
Yandex?

The Flankers and Fulcrums are in no way copies. Their engine intakes alone are unique.(The only fighter in service to feature dual, spacedivided under-intakes.) And as for the Frogfoot, anyone smart enough can think of the design!!!!!

I thought the MiG-1.42/1.44 was only a demostrator. :confused:
 

BrotherofSnake

Junior Member
B2 have no radars onboard
Actually, the B-2 uses a AN/APQ-181 radar. The radar uses a passive, two dimensionally scanned antenna. It is the stealthiest radar in the world and it allows the B-2 to penetrate sophisticated air defenses while searching for targets. :)

It is disturbing to me that while the F-22 can achieve Supercruise(Flying faster than the speed of sound without the use of an afterburner), it can only achieve Mach 1.8, while the F-15 with a less powerful engine can do 2.5. But I guess I need some physics review here?
I heard a Raptor can go much faster, but I guess they governed the engines or something, like what they did on the Abrams. :confused:
 

Aluka

Junior Member
VIP Professional
It is disturbing to me that while the F-22 can achieve Supercruise(Flying faster than the speed of sound without the use of an afterburner), it can only achieve Mach 1.8, while the F-15 with a less powerful engine can do 2.5. But I guess I need some physics review here?
Probably i can bring some light to this point, i am a turbine engineer after all ;). Still i can be wrong.
All my thoughts i base on this picture:
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Comparing this F-119 to RD-33, i've studied closely, i do not see any major diffirerence in turbine scheme (except that compressor's shape is undoubtably more clever, and designed to lower aerodynamic resistance, but this will go for any 5th generation engine, i believe; oh, and of course it's controlling unit is more advanced), but engine has some mods, thats for sure. First - it does not seem to have afterburner at all (correct me if im wrong), Second - it's compressor's division degree (not sure how to call this paramater properly) is MUCH lower then of any 4th generation engine, which makes this engine more gasturbine, then a turbofan. So, judging by these facts i assume that F-119 allows supercruise without afterburner because it's afterburner was abolished in favor of main combustion chamber. Engine simply charges more fuel to the turbine, shifting combustion to the one point. Though it's not as simple as may seem - you'll need much stronger materials.
Hope this answers the question. If im correct ofcourse.
 

Jones Henry

Banned Idiot
Ups! MAJOR setback for China:(


But luckily all is not lost! Didnt those "raptors" have a lot of sensitive easily breable high tech? China, how are those new EMP weapons coming along:rolleyes: ?
 

swimmerXC

Unregistered
VIP Professional
Registered Member
cut off oil supply to the US and those raptors won't even leave the ground, while the russia will have more than enough oil to support it's flankers
 

MadMax

Junior Member
with super cruise im not sure you would need an after burner but im fairly sure the raptor has one
if they just pump more fuel in to the engin all the time like aluka said that would explain why the raptor has such a short range
 
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Knarfo

New Member
Aluka said:
- it's compressor's division degree (not sure how to call this paramater properly) is MUCH lower then of any 4th generation engine, which makes this engine more gasturbine, then a turbofan.

compressors division degree: seems you are refering to the bypass ratio, right?

According to P&W, F119 is an argumented turbofan

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I think it is prudent not to make to much of a picture, since it is probably not very accurate due to security reasons.
 

Knarfo

New Member
MadMax said:
with super cruise im not sure you would need an after burner but im fairly sure the raptor has one
if they just pump more fuel in to the engin all the time like aluka said that would explain why the raptor has such a short range

F-22 has short range??
 

bd popeye

The Last Jedi
VIP Professional
I don't know why you gents keep guessing about the F-22 Raptor. Just look it up on the USAF page. They've got nothing to hide. Maybe this will clear up the misinformation bantied about.

Directly from the USAF...

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General Characteristics

Primary Function: Air dominance, multi-role fighter

Builder: Lockheed-Martin, Boeing

Power Plant: Two Pratt & Whitney F119-PW-100 turbofan engines with afterburners and two-dimensional thrust vectoring nozzles.

Thrust (each engine): 35,000-pound class.

Length: 62 feet, 1 inch (18.9 meters).

Height: 16 feet, 8 inches (5.1 meters).

Wingspan: 44 feet, 6 inches (13.6 meters).

Speed: Mach 2 class.

Ceiling: Above 50,000 feet (approximately 15 kilometers).

Empty Weight: 40,000-pound class (approximately 18,000 kilograms).

Armament: One M61A2 20-millimeter cannon with 480 rounds; side weapon bays can carry two AIM-9 infrared (heat seeking) air-to-air missiles and main weapon bays can carry (air-to-air loadout) six AIM-120 radar-guided air-to-air missiles or (air-to-ground loadout) two 1,000-pound GBU-32 JDAMs and two AIM-120 radar-guided air-to-air missiles.

Crew: One

Top speed is probaly classified but it does have afterburners. Range? Probaly classified. The USAF left that info off of the page.
 
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